Results 31 to 40 of about 1,072,800 (324)
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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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
semanticscholar +1 more source
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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Appearance of branched motifs in the spectra of BCN type Polychronakos spin chains
Nuclear Physics B, 2020 As is well known, energy levels appearing in the highly degenerate spectra of the AN−1 type of Haldane-Shastry and Polychronakos spin chains can be classified through the motifs, which are characterized by some sequences of the binary digits like ‘0’ and
Bireswar Basu-Mallick, Madhurima Sinha
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Physical Review Research, 2022 We present a study on the lifting of degeneracy of the size-quantized energy levels in an electrostatically defined quantum point contact in bilayer graphene by the application of in-plane magnetic fields.
Vanessa Gall +3 more
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Effect of measurement probes upon the conductance of an interacting nanosystem: Detection of an attached ring by non local many body effects [PDF]
, 2007 We consider a nanosystem connected to measurement probes via leads. When a magnetic flux is varied through a ring attached to one lead at a distance Lc from the nanosystem, the effective nanosystem transmission |ts|^2 exhibits Aharonov-Bohm oscillations ...
Freyn, Axel, Pichard, Jean-Louis
core +3 more sources
Features of third-order optical nonlinearity in carbon disulfide
Semiconductor Physics, Quantum Electronics & Optoelectronics, 2019 Degenerate four-wave mixing (DFWM) processes in carbon disulfide have been experimentally studied applying the wavelength dependent femtosecond laser source. The quantum mechanical perturbation theory was applied to analyze the experimental data.
L.V. Poperenko
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Nanoscale Research Letters, 2008 We have studied ultrafast carrier dynamics in oxidized silicon nanocrystals (NCs) and the role that surface-related states play in the various relaxation mechanisms over a broad range of photon excitation energy corresponding to energy levels below and ...
Nassiopoulou AG +2 more
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The multilevel pairing Hamiltonian versus the degenerate case
, 2006 We study the pairing Hamiltonian in a set of non degenerate levels. First, we review in the path integral framework the spontaneous breaking of the U(1) symmetry occurring in such a system for the degenerate situation.
A. Molinari +21 more
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