Browsing UMBC Physics Department by Title
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Prospects for AGN Studies at Hard Xray through MeV Energies
(20190318)This White Paper explores advances in the study of Active Galaxies which will be enabled by new observing capabilities at MeV energies (hard Xrays to gammarays; 0.11000 MeV), with a focus on multiwavelength synergies. ... 
Prospects for CTA observations of the young SNR RX J1713.73946
(IOP, 20170509)We perform simulations for future Cherenkov Telescope Array (CTA) observations of RX J1713.7−3946, a young supernova remnant (SNR) and one of the brightest sources ever discovered in very high energy (VHE) gamma rays. ... 
Prospects for Indirect Dark Matter Searches with the Cherenkov Telescope Array (CTA)
(POS, 20160818)The Cherenkov Telescope Array (CTA) will have a unique chance of discovery for a large range of masses in Weakly Interacting Massive Particles models of dark matter. The principal target for dark matter searches with CTA ... 
Prospects for observations of pulsars and pulsar wind nebulae with CTA
(Elsevier, 20120917)The last few years have seen a revolution in veryhigh ray astronomy (VHE; E > 100 GeV) driven largely by a new generation of Cherenkov telescopes (namely the H.E.S.S. telescope array, the MAGIC and MAGICII large telescopes ... 
Prospects in the orbital and rotational dynamics of the Moon with the advent of subcentimeter lunar laser ranging
(Elsevier, 20081015)Lunar laser ranging (LLR) measurements are crucial for advanced exploration of the laws of fundamental gravitational physics and geophysics as well as for future human and robotic missions to the Moon. The cornercube ... 
PTsymmetric slowing down of decoherence
(American Physical Society (APS), 20161027)We investigate PTsymmetric quantum systems ultraweakly coupled to an environment. We find that such open systems evolve under PTsymmetric, purely dephasing and unital dynamics. The dynamical map describing the evolution ... 
Pulsar prospects for the Cherenkov telescope array
(AIP publishing, 20121206)In the last few years, the FermiLAT telescope has discovered over a 100 pulsars at energies above 100 MeV, increasing the number of known gammaray pulsars by an order of magnitude. In parallel, imaging Cherenkov telescopes, ... 
A pulse sequence designed for robust Cphase gates in SiMOS and Si/SiGe double quantum dots
We theoretically analyze the errors in one and twoqubit gates in SiMOS and Si/SiGe spin qubit experiments, and present a pulse sequence which can suppress the errors in exchange coupling due to charge noise using ideal ... 
Pushing the Limits: High Redshift FermiLAT Blazars
(International Center for Theoretical Physics, 20160505) 
The puzzling case of the radioloud QSO 3C 186: a gravitational wave recoiling black hole in a young radio source?
(EDP sciences, 20170330)Context. Radioloud active galactic nuclei with powerful relativistic jets are thought to be associated with rapidly spinning black holes (BHs). BH spinup may result from a number of processes, including accretion of ... 
Quality assessment of LARES satellite ranging data
(IEEE\, 20150605)LARES is an Italian Space Agency mission designed to test General Relativity in the weak field of Earth. In particular, the satellite will be able to measure framedragging with an accuracy of about 1%. The difficulty of ... 
Quantifying the Impacts of Subpixel Reﬂectance Variability on Cloud Optical Thickness and Eﬀective Radius Retrievals Based On HighResolution ASTER Observations
(American Geophysical Union, 20180426)Recently, Zhang et al. (2016, https://doi.org/10.1002/2016JD024837) presented a mathematical framework based on a secondorder Taylor series expansion in order to quantify the planeparallel homogeneous bias (PPHB) in cloud ... 
Quantum and classical ergotropy from relative entropies
The quantum ergotropy quantifies the maximal amount of work that can be extracted from a quantum state without changing its entropy. We prove that the ergotropy can be expressed as the difference of quantum and classical ... 
Quantum computing using single photons and the Zeno effect
(American Physical Society (APS), 20041201)We show that the quantum Zeno effect can be used to suppress the failure events that would otherwise occur in a linear optics approach to quantum computing. From a practical viewpoint, that would allow the implementation ... 
Quantum computing, but even faster? UMBC researchers explore the possibilities with new NSF grant
Quantum computers have the potential to revolutionize communications, cybersecurity, and more, by dramatically speeding computation, researchers say. But as Sebastian Deffner notes, “Even quantum computing has shortcomings.” 
Quantum Efficiency Study and Reflectivity Enhancement of Au/Bi Absorbers
(Springer Nature Switzerland AG., 20200307)Xray absorbers of the Xray Integral Field Unit (XIFU) microcalorimeters are required to provide high quantum efficiency (QE) for incident Xrays and high reflectivity to longer wavelength radiation. The thickness of the ... 
Quantum entropy production in phase space
(IOP, 20130812)A fluctuation theorem for the nonequilibrium entropy production in quantum phase space is derived, which enables the consistent thermodynamic description of arbitrary quantum systems, open and closed. The new treatment ... 
Quantum Error Correction using Linear Optics
(OSA Publishing, 200510)We describe a laboratory demonstration of a quantum error correction procedure that can correct intrinsic measurement errors in linearoptics quantum gates. The procedure involved a photonic twoqubit encoding and fast ... 
Quantum fluctuation theorem for error diagnostics in quantum annealers
(Springer Nature, 20181121)Near term quantum hardware promises unprecedented computational advantage. Crucial in its development is the characterization and minimization of computational errors. We propose the use of the quantum fluctuation theorem ...