Dr. Zhai receives 2018 Early Career Faculty Excellence Award Dr. Pengwang Zhai was recognized at the annual CNMS Awards and Recognition Day in May 2018 with the Early Career Faculty Excellence Award.

This CNMS College-level award recognizes excellence and promise in scholarship and teaching by a tenure-track assistant professor and carries a one-time allocation of $2,000 in support of faculty development.




]]> Dr. Pengwang Zhai was recognized at the annual CNMS Awards and Recognition Day in May 2018 with the Early Career Faculty Excellence Award. This CNMS College-level award recognizes excellence and... https://beta.my.umbc.edu/api/v0/pixel/news/76449/guest@my.umbc.edu/891abe0261f8aeab2c89f4614a1bb0b0/api/pixel Physics https://beta.my.umbc.edu/groups/physics https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/original.jpg?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxlarge.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xlarge.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/large.png?1520366549 https://assets4-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/medium.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/small.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxsmall.png?1520366549 Physics https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/449/b961ca6115d0164dccc055612948c04a/xxlarge.jpg?1525873906 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/449/b961ca6115d0164dccc055612948c04a/xlarge.jpg?1525873906 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/449/b961ca6115d0164dccc055612948c04a/large.jpg?1525873906 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/449/b961ca6115d0164dccc055612948c04a/medium.jpg?1525873906 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/449/b961ca6115d0164dccc055612948c04a/small.jpg?1525873906 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/449/b961ca6115d0164dccc055612948c04a/xsmall.jpg?1525873906 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/449/b961ca6115d0164dccc055612948c04a/xxsmall.jpg?1525873906 0 0 false Wed, 09 May 2018 09:53:52 -0400 Dr. Kestner receives 2018 Carl S. Weber Teaching Award Dr. Jason Kestner has been selected as the recipient of the 2018 Carl S. Weber Excellence in Teaching Award.

The Carl S. Weber Excellence in Teaching Award honors a CNMS faculty member at UMBC with exceptional dedication to teaching as demonstrated by his or her enthusiasm, up-to-date teaching materials, effective mentoring, community service in the teaching area, approachability, rigorous learning requirements, coherent teaching philosophy and inspirational teaching style.

Dr. Kestner is an assistant professor. He received his Ph.D. in physics from the University of Michigan in 2009, where he also completed an elective teacher training program and was recognized as the 2004 Outstanding First-Year Graduate Instructor. After doing postdoctoral research at the University of Maryland, College Park, he joined the faculty of UMBC in 2012. Dr. Kestner has taught at all levels at UMBC, from an introductory physics discussion section to multiple upper division undergraduate courses and graduate courses. He is also quite active in mentoring student researchers at all levels, which has resulted in several peer-reviewed papers with UMBC students as first authors.

Dr. Kestner's research group focuses on developing control theory for physical devices that usefully exploit the strange features of quantum mechanics. A prominent example is a quantum computer, which could solve a certain important class of problems exponentially faster than any computer based on the current classical bit model. In particular, Dr. Kestner's group calculates how to precisely control the spin state of electrons in a variety of nanoscale semiconductor quantum dot structures despite the noisy environment in which the electrons reside.

Dr. Kestner was recognized at the annual CNMS Awards and Recognition Day in May 2018.


]]> Dr. Jason Kestner has been selected as the recipient of the 2018 Carl S. Weber Excellence in Teaching Award. The Carl S. Weber Excellence in Teaching Award honors a CNMS faculty member at UMBC... https://beta.my.umbc.edu/api/v0/pixel/news/76442/guest@my.umbc.edu/09b38dccc11a25be33a7d3e7e21775f6/api/pixel Physics https://beta.my.umbc.edu/groups/physics https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/original.jpg?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxlarge.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xlarge.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/large.png?1520366549 https://assets4-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/medium.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/small.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxsmall.png?1520366549 Physics https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/442/7161a0f30fd0ec30f4c3aaf0e658a14f/xxlarge.jpg?1525872789 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/442/7161a0f30fd0ec30f4c3aaf0e658a14f/xlarge.jpg?1525872789 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/442/7161a0f30fd0ec30f4c3aaf0e658a14f/large.jpg?1525872789 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/442/7161a0f30fd0ec30f4c3aaf0e658a14f/medium.jpg?1525872789 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/442/7161a0f30fd0ec30f4c3aaf0e658a14f/small.jpg?1525872789 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/442/7161a0f30fd0ec30f4c3aaf0e658a14f/xsmall.jpg?1525872789 https://assets4-beta.my.umbc.edu/system/shared/thumbnails/news/000/076/442/7161a0f30fd0ec30f4c3aaf0e658a14f/xxsmall.jpg?1525872789 0 0 false Wed, 09 May 2018 09:35:07 -0400 Dr. Franson earns Presidential Research Professor Award Congratulations to Professor James Franson, who has been selected to receive the 2018 Presidential Research Professor Award.

Dr. Franson will be honored at the Presidential Faculty and Staff Awards ceremony on Wednesday, April 4, at noon in the UC Ballroom.

“I am very honored to have been selected as a Presidential Research Professor. This is a great opportunity for our group’s research to become more familiar within the UMBC community as a whole,” says Dr. Franson.

His research in quantum optics plays an integral role in quantum computing and secure communications. ]]> Congratulations to Professor James Franson, who has been selected to receive the 2018 Presidential Research Professor Award. Dr. Franson will be honored at the Presidential Faculty and Staff... https://beta.my.umbc.edu/api/v0/pixel/news/74863/guest@my.umbc.edu/b54bdf6c9513f510e3795978e6892173/api/pixel Physics https://beta.my.umbc.edu/groups/physics https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/original.jpg?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxlarge.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xlarge.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/large.png?1520366549 https://assets4-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/medium.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/small.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxsmall.png?1520366549 Physics https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/863/bb3e6bcb32e4243425fad4b9c586bc7e/xxlarge.jpg?1521132618 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/863/bb3e6bcb32e4243425fad4b9c586bc7e/xlarge.jpg?1521132618 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/863/bb3e6bcb32e4243425fad4b9c586bc7e/large.jpg?1521132618 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/863/bb3e6bcb32e4243425fad4b9c586bc7e/medium.jpg?1521132618 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/863/bb3e6bcb32e4243425fad4b9c586bc7e/small.jpg?1521132618 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/863/bb3e6bcb32e4243425fad4b9c586bc7e/xsmall.jpg?1521132618 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/863/bb3e6bcb32e4243425fad4b9c586bc7e/xxsmall.jpg?1521132618 2 0 true Thu, 15 Mar 2018 13:04:49 -0400 New Article by Prof. Zhibo Zhang in PNAS “Biomass smoke from southern Africa can significantly enhance the brightness of stratocumulus over the southeastern Atlantic Ocean”

Zheng Lu, Xiaohong Liu, Zhibo Zhang, Chun Zhao, Kerry Meyer, Chamara Rajapakshe, Chenglai Wu, Zhifeng Yang and Joyce E. Penner

PNAS 2018; published ahead of print March 5, 2018

URL: https://doi.org/10.1073/pnas.1713703115

Abstract: Marine stratocumulus clouds cover nearly one-quarter of the ocean surface and thus play an extremely important role in determining the global radiative balance. The semipermanent marine stratocumulus deck over the southeastern Atlantic Ocean is of particular interest, because of its interactions with seasonal biomass burning aerosols that are emitted in southern Africa. Understanding the impacts of biomass burning aerosols on stratocumulus clouds and the implications for regional and global radiative balance is still very limited. Previous studies have focused on assessing the magnitude of the warming caused by solar scattering and absorption by biomass burning aerosols over stratocumulus (the direct radiative effect) or cloud adjustments to the direct radiative effect (the semidirect effect). Here, using a nested modeling approach in conjunction with observations from multiple satellites, we demonstrate that cloud condensation nuclei activated from biomass burning aerosols entrained into the stratocumulus (the microphysical effect) can play a dominant role in determining the total radiative forcing at the top of the atmosphere, compared with their direct and semidirect radiative effects. Biomass burning aerosols over the region and period with heavy loadings can cause a substantial cooling (daily mean −8.05 W m−2), primarily as a result of clouds brightening by reducing the cloud droplet size (the Twomey effect) and secondarily through modulating the diurnal cycle of cloud liquid water path and coverage (the cloud lifetime effect). Our results highlight the importance of realistically representing the interactions of stratocumulus with biomass burning aerosols in global climate models in this region.

Please see the UMBC news release for more details.

Please also see the article in Physics.org. ]]> “Biomass smoke from southern Africa can significantly enhance the brightness of stratocumulus over the southeastern Atlantic Ocean” Zheng Lu, Xiaohong Liu, Zhibo Zhang, Chun Zhao, Kerry Meyer,... https://beta.my.umbc.edu/api/v0/pixel/news/74568/guest@my.umbc.edu/7beda49f4dc0b1c55255ac81e63ec4f8/api/pixel Physics https://beta.my.umbc.edu/groups/physics https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/original.jpg?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxlarge.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xlarge.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/large.png?1520366549 https://assets4-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/medium.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/small.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxsmall.png?1520366549 Physics https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/568/9c55fc9137da8c77e2ee9b71a459d201/xxlarge.jpg?1520433327 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/568/9c55fc9137da8c77e2ee9b71a459d201/xlarge.jpg?1520433327 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/568/9c55fc9137da8c77e2ee9b71a459d201/large.jpg?1520433327 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/568/9c55fc9137da8c77e2ee9b71a459d201/medium.jpg?1520433327 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/568/9c55fc9137da8c77e2ee9b71a459d201/small.jpg?1520433327 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/568/9c55fc9137da8c77e2ee9b71a459d201/xsmall.jpg?1520433327 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/074/568/9c55fc9137da8c77e2ee9b71a459d201/xxsmall.jpg?1520433327 0 0 false Wed, 07 Mar 2018 09:39:37 -0500 Alum Nathan Kurtz & Chris Shuman featured in TIME article In the Jan 29, 2018 (Vol 191 No 3 issue of Time) Nathan Kurtz (JCET/UMBC; PhD 2012 and Chris Shuman (JCET/GESTAR) describe the data acquired as part of the aircraft based IceBridge mission into the Arctic Sea ice. Nathan is the project scientist for IceBridge. “NASA’s IceBridge mission fills that gap. Established in 2009, IceBridge is an annual series of flights over both polar regions, surveying the state of the ice with a suite of instruments including laser altimeters, radars, magneto­meters and gravimeters.”

Time Article link:
The Great Crack-Up By JEFFREY KLUGER
http://time.com/antarctica-climate-change/

Drs. Nathan Kurtz (JCET/PHYS Alum) and Chris Shuman (JCET/GES) are extensively quoted in this article.

Photo by Nathan Kurtz.  ]]> In the Jan 29, 2018 (Vol 191 No 3 issue of Time) Nathan Kurtz (JCET/UMBC; PhD 2012 and Chris Shuman (JCET/GESTAR) describe the data acquired as part of the aircraft based IceBridge mission into... https://beta.my.umbc.edu/api/v0/pixel/news/73974/guest@my.umbc.edu/d1a01f1b1ad9b7f9c996d42b654b0b96/api/pixel Physics https://beta.my.umbc.edu/groups/physics https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/original.jpg?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxlarge.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xlarge.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/large.png?1520366549 https://assets4-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/medium.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/small.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxsmall.png?1520366549 Physics https://assets4-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/974/69c5e3c92c2d769ec3be402398685c58/xxlarge.jpg?1518705930 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/974/69c5e3c92c2d769ec3be402398685c58/xlarge.jpg?1518705930 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/974/69c5e3c92c2d769ec3be402398685c58/large.jpg?1518705930 https://assets4-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/974/69c5e3c92c2d769ec3be402398685c58/medium.jpg?1518705930 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/974/69c5e3c92c2d769ec3be402398685c58/small.jpg?1518705930 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/974/69c5e3c92c2d769ec3be402398685c58/xsmall.jpg?1518705930 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/974/69c5e3c92c2d769ec3be402398685c58/xxsmall.jpg?1518705930 artic sea ice 0 0 false Thu, 15 Feb 2018 09:52:24 -0500 Fri, 12 Dec 2025 11:55:22 -0500 New article by grad student Tom Smith and Dr. Shih “Turbulence-Free Double-slit Interferometer”

Thomas A. Smith and Yanhua Shih

Phys. Rev. Lett. 120, 063606 – Published 8 February 2018

URL: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.063606

Abstract: Optical turbulence can be detrimental for optical observations. For instance, atmospheric turbulence may reduce the visibility or completely blur out the interference produced by an interferometer in open air. However, a simple two-photon interference theory based on Einstein’s granularity picture of light makes a turbulence-free interferometer possible; i.e., any refraction index, length, or phase variations along the optical paths of the interferometer do not have any effect on its interference. Applying this mechanism, the reported experiment demonstrates a two-photon double-slit interference that is insensitive to atmospheric turbulence. The turbulence-free mechanism and especially the turbulence-free interferometer would be helpful in optical observations that require high sensitivity and stability such as for gravitational-wave detection.

Please see the UMBC news release for more details.

Please also see the article in Space.com. ]]> “Turbulence-Free Double-slit Interferometer” Thomas A. Smith and Yanhua Shih Phys. Rev. Lett. 120, 063606 – Published 8 February 2018 URL:... https://beta.my.umbc.edu/api/v0/pixel/news/73908/guest@my.umbc.edu/3fc8ada8f317a178f4f4e1d94166cb8a/api/pixel Physics https://beta.my.umbc.edu/groups/physics https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/original.jpg?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxlarge.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xlarge.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/large.png?1520366549 https://assets4-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/medium.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/small.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxsmall.png?1520366549 Physics https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/908/40f60ec57302eefd726420517bacf39f/xxlarge.jpg?1518545939 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/908/40f60ec57302eefd726420517bacf39f/xlarge.jpg?1518545939 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/908/40f60ec57302eefd726420517bacf39f/large.jpg?1518545939 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/908/40f60ec57302eefd726420517bacf39f/medium.jpg?1518545939 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/908/40f60ec57302eefd726420517bacf39f/small.jpg?1518545939 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/908/40f60ec57302eefd726420517bacf39f/xsmall.jpg?1518545939 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/908/40f60ec57302eefd726420517bacf39f/xxsmall.jpg?1518545939 1 0 false Tue, 13 Feb 2018 13:19:26 -0500 Mon, 05 Mar 2018 15:50:28 -0500 New Article by graduate student Lipi Mukherjee & Dr. Zhai “Single scattering properties of non-spherical hydrosols modeled by spheroids”

Lipi Mukherjee, Peng-Wang Zhai, Yongxiang Hu, and David M. Winker

Opt. Express 26(2), A124-A135 (2018)

URL: https://www.osapublishing.org/oe/abstract.cfm?uri=oe-26-2-A124

Abstract: The single scattering properties of hydrosols play an important role in the study of ocean optics, ocean color remote sensing, and ocean biogeochemistry research. Measurements show that hydrosols can be of various sizes and shapes, suggesting general non-spherical models should be considered for the study of single scattering properties of hydrosols. In this work, light scattering by non-spherical hydrosols are modeled by randomly oriented spheroids with the Amsterdam discrete dipole approximation (ADDA) code. We have defined two new parameters to quantify the degree of optical non-sphericity (DONS) and investigated the dependence of DONS on refractive index, size, and aspect ratio. For particles with non-unitary aspect ratios, the magnitude of DONS increases as the refractive index and particle size increase. The dependence of the backscattering fraction on the non-sphericity, size, and refractive index of hydrosols is also studied. It is found that the backscattering fraction is larger for smaller particles as well as for particles with higher refractive indices. Absorptive hydrosols generally have a lower backscattering fraction than non-absorptive hydrosols. This study of light scattering by non- spherical hydrosols would lead to better radiative transfer models in ocean waters and new remote sensing techniques of hydrosol compositions. ]]> “Single scattering properties of non-spherical hydrosols modeled by spheroids” Lipi Mukherjee, Peng-Wang Zhai, Yongxiang Hu, and David M. Winker Opt. Express 26(2), A124-A135 (2018) URL:... https://beta.my.umbc.edu/api/v0/pixel/news/73048/guest@my.umbc.edu/cd9c90524175ad2b004e2b6a047188e5/api/pixel Physics https://beta.my.umbc.edu/groups/physics https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/original.jpg?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxlarge.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xlarge.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/large.png?1520366549 https://assets4-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/medium.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/small.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxsmall.png?1520366549 Physics https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/048/4ecbaca2cf496340586c77676615d025/xxlarge.jpg?1515163900 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/048/4ecbaca2cf496340586c77676615d025/xlarge.jpg?1515163900 https://assets4-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/048/4ecbaca2cf496340586c77676615d025/large.jpg?1515163900 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/048/4ecbaca2cf496340586c77676615d025/medium.jpg?1515163900 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/048/4ecbaca2cf496340586c77676615d025/small.jpg?1515163900 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/048/4ecbaca2cf496340586c77676615d025/xsmall.jpg?1515163900 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/048/4ecbaca2cf496340586c77676615d025/xxsmall.jpg?1515163900 0 0 false Fri, 05 Jan 2018 09:58:12 -0500 Atmospheric Physics Students Take Flight Graduate students Brian Carroll and Zhifeng Yang take flight to study weather, pollution in multi-institution initiative.

https://news.umbc.edu/umbc-students-take-flight-to-study-weather-pollution-in-multi-institution-initiative/

Photo by Zhifeng Yang. ]]> Graduate students Brian Carroll and Zhifeng Yang take flight to study weather, pollution in multi-institution initiative.... https://beta.my.umbc.edu/api/v0/pixel/news/73039/guest@my.umbc.edu/0e32ab6926094df2cfc499d68cb4db54/api/pixel Physics https://beta.my.umbc.edu/groups/physics https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/original.jpg?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxlarge.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xlarge.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/large.png?1520366549 https://assets4-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/medium.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/small.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxsmall.png?1520366549 Physics https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/039/a622d08f07d0fb7e9b8e387cc75a2c00/xxlarge.jpg?1515095693 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/039/a622d08f07d0fb7e9b8e387cc75a2c00/xlarge.jpg?1515095693 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/039/a622d08f07d0fb7e9b8e387cc75a2c00/large.jpg?1515095693 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/039/a622d08f07d0fb7e9b8e387cc75a2c00/medium.jpg?1515095693 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/039/a622d08f07d0fb7e9b8e387cc75a2c00/small.jpg?1515095693 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/039/a622d08f07d0fb7e9b8e387cc75a2c00/xsmall.jpg?1515095693 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/073/039/a622d08f07d0fb7e9b8e387cc75a2c00/xxsmall.jpg?1515095693 0 0 false Thu, 04 Jan 2018 14:55:21 -0500 Dr. Sebastian Deffner featured on "The Academic Minute" A new, more secure computer is on the way to protect our most sensitive data.

Dr. Deffner, assistant professor of physics, explores quantum supremacy and how it could keep our data safe in the future.

URL: https://academicminute.org ]]> A new, more secure computer is on the way to protect our most sensitive data. Dr. Deffner, assistant professor of physics, explores quantum supremacy and how it could keep our data safe in the... https://beta.my.umbc.edu/api/v0/pixel/news/72732/guest@my.umbc.edu/21d47e67d6032db354cc100775afe2a7/api/pixel Physics https://beta.my.umbc.edu/groups/physics https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/original.jpg?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxlarge.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xlarge.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/large.png?1520366549 https://assets4-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/medium.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/small.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxsmall.png?1520366549 Physics https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/732/60269684dcc2544720d5d001fb279daf/xxlarge.jpg?1513014647 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/732/60269684dcc2544720d5d001fb279daf/xlarge.jpg?1513014647 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/732/60269684dcc2544720d5d001fb279daf/large.jpg?1513014647 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/732/60269684dcc2544720d5d001fb279daf/medium.jpg?1513014647 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/732/60269684dcc2544720d5d001fb279daf/small.jpg?1513014647 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/732/60269684dcc2544720d5d001fb279daf/xsmall.jpg?1513014647 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/732/60269684dcc2544720d5d001fb279daf/xxsmall.jpg?1513014647 3 0 false Mon, 11 Dec 2017 12:52:18 -0500 Tue, 11 Mar 2025 13:49:15 -0400 New Article by recent grad Michael Wolfe and Dr. Kestner “Robust operating point for capacitively coupled singlet-triplet qubits”

M. A. Wolfe, F. A. Calderon-Vargas, and J. P. Kestner

Phys. Rev. B 96, 201307(R)

URL: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.96.201307

Abstract: Singlet-triplet qubits in lateral quantum dots in semiconductor heterostructures exhibit high-fidelity single-qubit gates via exchange interactions and magnetic field gradients. High-fidelity two-qubit entangling gates are challenging to generate since weak interqubit interactions result in slow gates that accumulate error in the presence of noise. However, the interqubit electrostatic interaction also produces a shift in the local double well detunings, effectively changing the dependence of exchange on the gate voltages. We consider an operating point where the effective exchange is first-order insensitive to charge fluctuations while maintaining nonzero interactions. This “sweet spot” exists only in the presence of interactions. We show that working at the interacting sweet spot can directly produce maximally entangling gates, and we simulate the gate evolution under realistic 1/f noise. We report theoretical two-qubit gate fidelities above 99% in GaAs and Si systems.

Please see the UMBC news release for more details. ]]> “Robust operating point for capacitively coupled singlet-triplet qubits” M. A. Wolfe, F. A. Calderon-Vargas, and J. P. Kestner Phys. Rev. B 96, 201307(R) URL:... https://beta.my.umbc.edu/api/v0/pixel/news/72486/guest@my.umbc.edu/bf85e9e1dcb91d5a71831aed0260ba0a/api/pixel Physics https://beta.my.umbc.edu/groups/physics https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/original.jpg?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxlarge.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xlarge.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/large.png?1520366549 https://assets4-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/medium.png?1520366549 https://assets3-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/small.png?1520366549 https://assets1-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xsmall.png?1520366549 https://assets2-beta.my.umbc.edu/system/shared/avatars/groups/000/000/602/92740316e784a1ffbc6263cda396b05a/xxsmall.png?1520366549 Physics https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/486/78c647a7994c8f3963068455f5c982d3/xxlarge.jpg?1512395488 https://assets1-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/486/78c647a7994c8f3963068455f5c982d3/xlarge.jpg?1512395488 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/486/78c647a7994c8f3963068455f5c982d3/large.jpg?1512395488 https://assets4-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/486/78c647a7994c8f3963068455f5c982d3/medium.jpg?1512395488 https://assets2-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/486/78c647a7994c8f3963068455f5c982d3/small.jpg?1512395488 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/486/78c647a7994c8f3963068455f5c982d3/xsmall.jpg?1512395488 https://assets3-beta.my.umbc.edu/system/shared/thumbnails/news/000/072/486/78c647a7994c8f3963068455f5c982d3/xxsmall.jpg?1512395488 3 0 false Mon, 04 Dec 2017 08:55:01 -0500 Thu, 18 Jan 2018 16:01:15 -0500