Results 31 to 40 of about 1,046,576 (324)
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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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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Anomalous discrete flavor symmetry and domain wall problem
Physics Letters B, 2019 Discrete flavor symmetry is often introduced for explaining quark/lepton masses and mixings. However, its spontaneous breaking leads to the appearance of domain walls, which is problematic for cosmology. We consider a possibility that the discrete flavor
So Chigusa, Kazunori Nakayama
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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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Positrons vs electrons channeling in silicon crystal: energy levels, wave functions and quantum chaos manifestations [PDF]
, 2017 The motion of fast electrons through the crystal during axial channeling could be regular and chaotic. The dynamical chaos in quantum systems manifests itself in both statistical properties of energy spectra and morphology of wave functions of the ...
N. Shul'ga +4 more
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Tetraquark operators in lattice QCD and exotic flavour states in the charm sector
Journal of High Energy Physics, 2017 We present a general class of operators resembling compact tetraquarks which have a range of colour-flavour-spin structures, transform irreducibly under the symmetries of the lattice and respect other relevant symmetries.
Gavin K. C. Cheung +4 more
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Dynamical creation of entangled bosonic states in a double well [PDF]
, 2011 We study the creation of a bosonic N00N state from the evolution of a Fock state in a double well. While noninteracting bosons disappear quickly in the Hilbert space, the evolution under the influence of a Bose-Hubbard Hamiltonian is much more restricted.
Ziegler, K.
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