Results 21 to 30 of about 876,142 (299)
Toward relaxation asymmetry: Heating is faster than cooling
Physical Review Research, 2021 An asymmetry in thermal relaxation toward equilibrium has been uncovered for Langevin systems near stable minima [Phys. Rev. Lett. 125, 110602 (2020)10.1103/PhysRevLett.125.110602].
Tan Van Vu, Yoshihiko Hasegawa
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Vacuum-field-induced state mixing
SciPost Physics, 2023 By engineering the electromagnetic vacuum field, the induced Casimir-Polder shift (also known as Lamb shift) and spontaneous emission rates of individual atomic levels can be controlled. When the strength of these effects becomes comparable to the energy
Diego Fernández de la Pradilla, Esteban Moreno, Johannes Feist
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Communications in Analysis and Mechanics, 2023 In this work, the initial-boundary value problem for the global dynamical properties of solutions to a class of finite degenerate fourth-order parabolic equations with mean curvature nonlinearity is studied.
Yuxuan Chen
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Impact of Nd Doping on Electronic, Optical, and Magnetic Properties of ZnO: A GGA + U Study
Molecules, 2023 The electronic, optical, and magnetic properties of Nd-doped ZnO systems were calculated using the DFT/GGA + U method. According to the results, the Nd dopant causes lattice parameter expansion, negative formation energy, and bandgap narrowing, resulting
Qiao Wu +7 more
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SciPost Physics, 2021 We investigate the two-dimensional motion of relativistic cold electrons in the presence of ‘strictly’ spatially varying magnetic fields satisfying, however, no magnetic monopole condition.
Srishty Aggarwal, Banibrata Mukhopadhyay, Gianluca Gregori
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Generalized monodromy method in gauge/gravity duality [PDF]
Sci Rep 12, 11988 (2022), 2023 The method of monodromy is an important tool for computing Virasoro conformal blocks in a two-dimensional Conformal Field Theory (2d CFT) at large central charge and external dimensions. In deriving the form of the monodromy problem, which defines the method, one needs to insert a degenerate operator, usually a level-two operator, into the ...
arxiv +1 more source
Degeneracy of light scattering and absorption by a single nanowire
Scientific Reports, 2021 We theoretically and numerically prove that under an electromagnetic plane wave with linear polarization incident normally to a single nanowire, there exists a power diagram that could indicate scattering properties for any system configurations ...
Jeng Yi Lee, Yi-Huan Chen, Pai-Yen Chen
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Theory of noninteracting fermions and bosons in the canonical ensemble
Physical Review Research, 2020 We present a self-contained theory for the exact calculation of particle number counting statistics of noninteracting indistinguishable particles in the canonical ensemble.
Hatem Barghathi +2 more
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Triply degenerate nodal points in RERh$_{6}$Ge$_{4}$ (RE=Y, La, Lu) [PDF]
Phys. Rev. B 98, 045134 (2018), 2017 As a new type of fermions without counterpart in high energy physics, triply degenerate fermions show exotic physical properties, which are represented by triply degenerate nodal points in topological semimetals. Here, based on the space group theory analysis, we propose a practical guidance for seeking a topological semimetal with triply degenerate ...
arxiv +1 more source
Degenerate Landau-Zener model in the presence of quantum noise [PDF]
International Journal of Quantum Information Vol. 17, No. 5 (2019)
1950049 (14 pages), 2019 The degenerate Landau-Zener-Majorana-St\"uckelberg model consists of two degenerate energy levels whose energies vary with time and in the presence of an interaction which couples the states of the two levels. In the adiabatic limit, it allows for the populations transfer from states of one level to states of the other level.
arxiv +1 more source