Zobrazeno 1 - 10
of 244
pro vyhledávání: '"Yshai Avishai"'
Autor:
Yehuda B. Band, Yshai Avishai
Quantum mechanics transcends and supplants classical mechanics at the atomic and subatomic levels. It provides the underlying framework for many subfields of physics, chemistry and materials science, including condensed matter physics, atomic physics
Autor:
Yehuda B. Band, Yshai Avishai
Publikováno v:
Physical Review B. 104
Focusing on equilibrium spin current density tensor, we analyze the spin physics of electrons in single layer graphene subject to a one-dimensional periodic Kronig-Penney potential $u(x)$ and uniform Rashba spin-orbit coupling of strength $\ensuremat
Autor:
Yehuda B. Band, Yshai Avishai
Publikováno v:
Physical Review B. 103
We study forward scattering of 2D massless Dirac electrons at Fermi energy {\varepsilon} > 0 in single layer graphene through a 1D rectangular barrier of height {u_0} in the presence of uniform Rashba spin-orbit coupling (of strength {\lambda}). The
Autor:
Yehuda B. Band, Yshai Avishai
The Klein paradox, first introduced in relation to chiral tunneling, is also manifested in the study of bound-states in single-layer graphene with a 1D square-well potential. We derive analytic (and numerical) solutions for bound-state wavefunctions,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87b7aa9de6e9a16e83756cc45f6c19ff
http://arxiv.org/abs/2004.01528
http://arxiv.org/abs/2004.01528
Publikováno v:
Physical Review B. 101
In our paper, calculation of exchange interaction is carried out for two itinerant atoms $^{173}\mathrm{Yb}(^{1}S_{0})$ and $^{173}\mathrm{Yb}(^{3}P_{0})$. The fact that the exchange interaction is modified when the $^{173}\mathrm{Yb}({}^{3}{P}_{0})$
The matrix-valued Aharonov-Casher phase factor $F_{\text{AC}}$ (related to the c-number Aharonov-Casher phase $\lambda_{\text{AC}}$) plays an important role in the physics of mesoscopic systems in which spin-orbit coupling is relevant. Yet, its relat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14ecb724fe1e5badcc2f39393102b2b9
http://arxiv.org/abs/1904.01751
http://arxiv.org/abs/1904.01751
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
Publikováno v:
Physical Review B. 97
Whereas in the familiar Kondo effect the exchange interaction is dipolar, there are systems in which the exchange interaction is multipolar, as has been realized in a recent experiment. Here, we study multipolar Kondo effect in a Fermi gas of cold $^
In this work we study the possible occurrence of topological insulators for 2D fermions of high spin. They can be realized in cold fermion systems with ground-state atomic spin $F>\tfrac{1}{2}$, if the optical potential is properly designed, and spin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b8ffd0a89b8ebbce8780952b75e5bed
Autor:
Yehuda B. Band, Yshai Avishai
We compute Landau-Zener probabilities for 3-level systems with a linear sweep of the uncoupled energy levels of the 3$\times$3 Hamiltonian $H(t)$. Two symmetry classes of Hamiltonians are studied: For $H(t) \in$ su(2) (expressible as a linear combina
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c4d244e9d14e5f5cc98c3fd3bfa5ed7