he mission of the Department of Physics at UMBC is based on three pillars: education, research and service to society. We strive to provide outstanding educational opportunities, through instruction and research, for undergraduate physics majors seeking preparation for graduate school or entry into the workforce. We also aim to train graduate students to be leaders in their field of research. Our research goal is to grow and sustain internationally recognized research groups in atmospheric physics, astrophysics, condensed matter physics and quantum optics and information science. Through our teaching of physics to non-science and non-physics majors and through our Physics for Secondary Education Teachers program, we provide professional service to the university community and the State.

Recent Submissions

  • Tip-enhanced strong coupling spectroscopy, imaging, and control of a single quantum emitter 

    Park, Kyoung-Duck; May, Molly A.; Leng, Haixu; Wang, Jiarong; Kropp, Jaron A.; Gougousi, Theodosia; Pelton, Matthew; Raschke, Markus B. (2019-02-27)
    Optical cavities can enhance and control light-matter interactions. This has recently been extended to the nanoscale, and with single emitter strong coupling regime even at room temperature using plasmonic nano-cavities ...
  • Optical attenuation without absorption 

    Nodurft, I.C.; Brewster, R.A.; Pittman, T.B.; Franson, J.D. (2019-03-05)
    We consider a coherent state of light propagating through an ensemble of two-level atoms where all the atoms are initially in their ground state. In ordinary absorption, the transition of atoms to their excited state along ...
  • Strain effects on electronic and magnetic properties of the monolayer α-RuCl3α-RuCl3: A first-principles and Monte Carlo study 

    Vatansever, Erol; Sarikurt, Sevil; Kadioglu, Yelda; Aktürk, Olcay Üzengi; Yüksel, Yusuf; Ataca, Can; Aktürk, Ethem; Akıncı, Ümit (AIP Publishing, 2019-02-28)
    The electronic and magnetic properties of a material can be altered by strain engineering. We elucidate the strain dependence of electronic and magnetic properties in α-RuCl₃ monolayer by varying the biaxial in-plane tensile ...
  • Relativistic Jets in the Accretion & Collimation Zone: New Challenges Enabled by New Instruments 

    Perlman, Eric S.; Birkinshaw, Mark; Kadler, Matthias; Komissarov, Serguei; Lister, Matthew; Meier, David; Meyer, Eileen; Nakamura, Masanori; Nyland, Kristina; O’Dea, Christopher; Worrall, Diana; Zdziarski, Andrzej (2019-02-26)
    Jets are a ubiquitous part of the accretion process, seen in a wide variety of objects ranging from active galaxies (AGN) to X-ray binary stars and even newly formed stars. AGN jets are accelerated by the supermassive black ...
  • Fast-Cadence TESS Photometry and Doppler Tomography of the Asynchronous Polar CD Ind: A Revised Accretion Geometry from Newly Proposed Spin and Orbital Periods 

    Littlefield, Colin; Garnavich, Peter; Mukai, Koji; Mason, Paul; Szkody, Paula; Kennedy, Mark; Myers, Gordon; Schwarz, Robert (2019-03-01)
    The TESS spacecraft observed the asynchronous polar CD Ind at a two-minute cadence almost continuously for 28 days in 2018, covering parts of 5 consecutive cycles of the system's 7.3-day beat period. These observations ...
  • Using Clickers for Deliberate Practice in Five Large Science Courses 

    Hodges, Linda C.; Anderson, Eric C.; Carpenter, Tara S.; Cui, Lili; Feeser, Elizabeth A.; Gierasch, Tiffany Malinky (NSTA, 2017-11-01)
    Clickers are often used as an active learning tool in face-to-face classes to enhance student engagement and assess student learning. In this article we share the variety of ways that we use clicker questions ...
  • Using Reading Quizzes in STEM Classes—The What, Why, and How 

    Hodges, Linda C.; Anderson, Eric C.; Carpenter, Tara S.; Cui, Lili; Gierasch, Tiffany Malinky; Leupen, Sarah; Nanes, Kalman M.; Wagner, Cynthia R. (National Science Teachers Association, 2015)
    Many active learning pedagogies depend on students' preparing for class in advance. One common method for holding students accountable for this preparation is the use of reading quizzes. When used thoughtfully, reading ...
  • J-PLUS: Two-dimensional analysis of the stellar population in NGC 5473 and NGC 5485 

    Roman, I. San; Sanchez-Blazquez, P.; Cenarro, A. J.; Diaz-Garcia, L. A.; Lopez-Sanjuan, C.; Varela, J.; Vilella-Rojo, G.; Akras, S.; Bonoli, S.; Chies Santos, A. L.; Coelho, P.; Cortesi, A.; Ederoclite, A.; Jiménez-Teja, Y.; Logroño-García, R.; Oliveira, R. Lopes de; Nogueira-Cavalcante, J. P.; Orsi, A.; Ramió, H. Vázquez; Viironen, K.; Cristóbal-Hornillos, D.; Dupke, R.; Marín-Franch, A.; Oliveira, C. Mendes de; Moles, M.; Sodré, L. (ESO, 2019-01-12)
    Context. The spatial variations of stellar population properties within a galaxy are intimately related to their formation process. Therefore, spatially resolved studies of galaxies are essential to uncover their formation ...
  • Variability and Proper Motion of X-ray Knots in the Jet of Centaurus A 

    Snios, Bradford; Wykes, Sarka; Nulsen, Paul E. J.; Kraft, Ralph P.; Meyer, Eileen T.; Birkinshaw, Mark; Worrall, Diana M.; Hardcastle, Martin J.; Roediger, Elke; Forman, William R.; Jones, Christine (2019-01-22)
    We report results from Chandra observations analyzed for evidence of variability and proper motion in the X-ray jet of Centaurus A. Using data spanning 15 years, collective proper motion of 11.3±3.3 mas yr We report results ...
  • NuSTAR Detection of X-rays Concurrent with Gamma Rays in the Nova V5855 Sgr 

    Nelson, Thomas; Mukai, Koji; Li, Kwan-Lok; Vurm, Indrek; Metzger, Brian D.; Chomiuk, Laura; Sokoloski, J.L.; Linford, Justin D.; Bohlsen, Terry; Luckas, Paul (2018-12-31)
    We report the first detection of hard (>10 keV) X-ray emission simultaneous with gamma rays in a nova eruption. Observations of the nova V5855 Sgr carried out with the NuSTAR satellite on Day 12 of the eruption revealed ...
  • Rapid adiabatic gating for capacitively coupled quantum dot hybrid qubits without barrier control 

    Setser, A. A.; Kestner, J. P. (2018)
    We theoretically examine the capacitive coupling between two quantum dot hybrid qubits, each consisting of three electrons in a double quantum dot, as a function of the energy detuning of the double dot potentials. We ...
  • Indications of a soft cutoff frequency in the charge noise of a Si/SiGe quantum dot spin qubit 

    Güngördü, Utkan; Kestner, J. P. (2018-11-14)
    Characterizing charge noise is of prime importance to the semiconductor spin qubit community. We analyze the echo amplitude data from a recent experiment [Yoneda et al., Nat. Nanotechnol. 13, 102 (2018)] and note that the ...
  • A 1D fluid model of the Centaurus A jet 

    Wykes, Sarka; Snios, Bradford T.; Nulsen, Paul E. J.; Kraft, Ralph P.; Birkinshaw, Mark; Hardcastle, Martin J.; Worrall, Diana M.; McDonald, Iain; Rejkuba, Marina; Jones, Thomas W.; Stark, David J.; Forman, William R.; Meyer, Eileen T.; Jones, Christine (2018-09-27)
    We implement a steady, one-dimensional flow model for the X-ray jet of Centaurus A in which entrainment of stellar mass loss is the primary cause of dissipation. Using over 260 ks of new and archival Chandra/ACIS data, we ...
  • Predictive Mining of Time Series Data in Astronomy 

    Perlman, Eric; Java, Akshay (2003-01-01)
    We discuss the development of a Java toolbox for astronomical time series data. Rather than using methods conventional in astronomy (e.g., power spectrum and cross-correlation analysis) we employ rule discovery techniques ...
  • Evaluation of autoconversion and accretion enhancement factors in general circulation model warm-rain parameterizations using ground-based measurements over the Azores 

    Wu, Peng; Xi, Baike; Dong, Xiquan; Zhang, Zhibo (Copernicus Publications on behalf of the European Geosciences Union, 2018-12-07)
    A great challenge in climate modeling is how to parameterize subgrid cloud processes, such as autoconversion and accretion in warm-rain formation. In this study, we use ground-based observations and retrievals over the ...
  • Efficiency of harmonic quantum Otto engines at maximal power 

    Deffner, Sebastian (2018-11-10)
    Recent experimental breakthroughs produced the first nano heat engines that have the potential to harness quantum resources. An instrumental question is how their performance measures up against the efficiency of classical ...
  • Stroboscopically Robust Gates For Capacitively Coupled Singlet-Triplet Qubits 

    Colmenar, R. K. L.; Kestner, J. P. (2018-10-09)
    Recent work on Ising-coupled double-quantum-dot spin qubits in GaAs with voltage-controlled exchange interaction has shown improved two-qubit gate fidelities from the application of oscillating exchange along with a strong ...
  • Non-thermal quantum engine in transmon qubits 

    Cherubim, Cleverson; Brito, Frederico; Deffner, Sebastian (2018-10-11)
    The design and implementation of quantum technologies necessitates the understanding of thermodynamic processes in the quantum domain. In stark contrast to macroscopic thermodynamics, at the quantum scale processes generically ...
  • Improving cloud optical property retrievals for partly cloudy pixels using coincident higher‐resolution single band measurements: A feasibility study using ASTER observations 

    Werner, F.; Zhang, Z.; Wind, G.; Miller, D.J.; Platnick, S.; Girolamo, L. Di (American Geophysical Union, 2018-10-09)
    Clear‐sky contamination is a challenging and long‐lasting problem for cloud optical thickness (τ) and effective droplet radius (rₑ𝒻𝒻) retrievals using passive satellite sensors. This study explores the feasibility of ...
  • ALL-OPTICAL NONLINEAR ACTIVATION FUNCTION FOR PHOTONIC NEURAL NETWORKS 

    Miscuglio, Mario; Mehrabian, Armin; Hu, Zibo; Azzam, Shaimaa I.; George, Jonathan; Kildishev, Alexander V.; Pelton, Matthew; Sorger, Volker J. (Optical Society of America, 2018)
    With the recent successes of neural networks (NN) to perform machine-learning tasks, photonic-based NN designs may enable high throughput and low power neuromorphic compute paradigms since they bypass the parasitic charging ...

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