Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Yshai Avishai"'
In a cold atom gas subject to a 2D spin-dependent optical lattice potential with hexagonal symmetry, trapped atoms undergo orbital motion around the potential minima. Such atoms are elementary quantum rotors. We develop the theory of such quantum rot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59798e72677c40ad7cb0adef2cea7587
http://arxiv.org/abs/1903.03847
http://arxiv.org/abs/1903.03847
The physics of a planar chiral $p\pm i p$ superconductor is studied for various vortex configurations. The occurrence of vortex quasi-particle bound states is exposed together with their ensuing collective properties, such as sub-gap bands induced by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3aa54254b2e6c5f2c0c8b41e1452ac9
Publikováno v:
Low Temperature Physics. 28:539-546
The spectrum of boson fields and two-point correlators are analyzed in a quantum bar system (a superlattice formed by two crossed interacting arrays of quantum wires), with a short-range interwire interaction. The standard bosonization procedure is s
Autor:
Yehuda B. Band, Yshai Avishai
The (unitary and nonunitary) dynamics of quantum systems, and the correlations of multipartite systems, beginning with two-level systems and introduction of the Bloch sphere are considered. Absorption and dispersion of light by a medium of two-level
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e03a38aa9b64e04a14de2370ad37143b
https://doi.org/10.1016/b978-0-444-53786-7.00006-x
https://doi.org/10.1016/b978-0-444-53786-7.00006-x
Publikováno v:
Journal of Physics: Condensed Matter. 7:6045-6063
Multichannel quantum scattering theory is employed to calculate the nonlinear two-port conductance and magnetoconductance of mesoscopic systems such as quantum well heterostructures, quantum dots and semiconductor or metallic microstructures. We empl
Publikováno v:
Dynamical Symmetries for Nanostructures ISBN: 9783211997239
We concentrate in this book on the symmetry properties of nanoobjects (quantum dots, rings and short chains of quantum dots, molecular complexes) in a weak tunneling and/or capacitive contact with reservoirs (metallic electrodes attached to quantum d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61d8d0429c1c525a921011d50436bc62
https://doi.org/10.1007/978-3-211-99724-6_2
https://doi.org/10.1007/978-3-211-99724-6_2
Publikováno v:
Dynamical Symmetries for Nanostructures ISBN: 9783211997239
Hitherto we discussed the dynamical symmetries in nanoobjects which are realized in tunneling experiments in external electric and magnetic field or induced by interaction with oscillator bath of elastic deformations of the constituent atoms (molecul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21c225efa274da8ece7c694eac4dbc5d
https://doi.org/10.1007/978-3-211-99724-6_6
https://doi.org/10.1007/978-3-211-99724-6_6
Publikováno v:
Physical Review B. 44:8028-8034
We study the existence of bound states of two-dimensional Helmholtz equations with Dirichlet boundary conditions in open domains. The particular geometry studied here corresponds to a ``broken strip,'' namely a bent pipe open at both ends and made of
Autor:
J. Bar-Touv, Yshai Avishai
Publikováno v:
Physical Review B. 42:11496-11504
The localization characteristics of quantum-mechanical propagation of electrons through a disordered mesoscopic system are emulated in the simple geometry of a rectangular kink. The Landauer-Buttiker prescription and transfer-matrix method are combin
Publikováno v:
Physical Review B. 74
In a recent experiment, the local current distribution of a two-dimensional electron gas in the quantum Hall regime was probed by measuring the variation of the conductance due to local gating. The main experimental finding was the existence of "hot