Results 21 to 30 of about 1,036,661 (329)
Physical Review Research, 2022 An analytic closed form solution is derived for the bound states of a two-dimensional electron gas subject to a static, inhomogeneous (1/r in plane decaying) magnetic field, including the Zeeman interaction.
Dominik Sidler +3 more
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +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
doaj +1 more source
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
doaj +1 more source
The Jahn-Teller instability with accidental degeneracy [PDF]
, 1969 The Jahn-Teller theorem predicts that orbitally degenerate complexes in solids can lower their energy by a distortion which lowers their symmetry. Exact degeneracy is not necessary for this instability; usually it suffices if the actual separation of the
Lannoo, M, Stoneham, AM
core +1 more source
The Origin of Degeneracies and Crossings in the 1d Hubbard Model [PDF]
, 2002 The paper is devoted to the connection between integrability of a finite quantum system and degeneracies of its energy levels. In particular, we analyze in detail the energy spectra of finite Hubbard chains.
Affleck I +24 more
core +3 more sources
Degrees of controllability for quantum systems and applications to atomic systems [PDF]
, 2001 Precise definitions for different degrees of controllability for quantum systems are given, and necessary and sufficient conditions are discussed.
A I Solomon +21 more
core +2 more sources