Results 41 to 50 of about 1,046,576 (324)
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
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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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Physical Review Physics Education Research, 2022 Several recent studies have employed item response theory (IRT) to rank incorrect responses to commonly used research-based multiple-choice assessments. These studies use Bock’s nominal response model (NRM) for applying IRT to categorical (nondichotomous)
Trevor I. Smith, Nasrine Bendjilali
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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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Integral equation for numerical solution of stationary quantum-mechanical problems
Advanced Engineering Research, 2016 The work objective is to describe the numerical solution method for the stationary Schrödinger equation based on the application of the integral equation identical to the Schrödinger equation.
Sergey Yu. Knyazev
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Symmetry-breaking in the H2@C60endofullerene revealed by inelastic neutron scattering at low temperature [PDF]
, 2015 The fine structure of the rotational ground state of molecular ortho-hydrogen confined inside the fullerene cage C60 is investigated by inelastic neutron scattering (INS).
Horsewill, Anthony J. +5 more
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Energy levels of few-electron quantum dots imaged and characterized by atomic force microscopy [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2009 Strong confinement of charges in few-electron systems such as in atoms, molecules, and quantum dots leads to a spectrum of discrete energy levels often shared by several degenerate states.
L. Cockins +7 more
semanticscholar +1 more source