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Autor:
Englman, R.1 (AUTHOR), Yahalom, A.1 (AUTHOR) asya@ariel.ac.il
Publikováno v:
Foundations of Physics. Feb2023, Vol. 53 Issue 1, p1-20. 20p.
Autor:
Englman, R., Vértesi, T.
Publikováno v:
Phys. Rev. B 78, 205311 (2008)
Brillouin zones of graphene systems possess Dirac points, where band degeneracies occur. We study the variety of (and large magnitude) phases that the electronic states can acquire when a uniform time-dependent electric field carries the electrons ar
Externí odkaz:
http://arxiv.org/abs/0806.3726
Autor:
Vértesi, T., Englman, R.
Publikováno v:
Phys. Rev. A 76, 042322 (2007)
Under broad conditions, evolutions due to two different Hamiltonians are shown to lead at some moment to orthogonal states. For two spin-1/2 systems subject to precession by different magnetic fields the achievement of orthogonalization is demonstrat
Externí odkaz:
http://arxiv.org/abs/0710.3581
Autor:
Yahalom, A., Englman, R.
The evolution of open systems, subject to both Hamiltonian and dissipative forces, is studied by writing the $nm$ element of the time ($t$) dependent density matrix in the form \ber \rho_{nm}(t)&=& \frac {1}{A} \sum_{\alpha=1}^A \gamma ^{\alpha}_n (t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0512474
Autor:
Vértesi, T., Englman, R.
Recently, Marzlin and Sanders (2004) demonstrated an inconsistency when the adiabatic approximation was applied to specific, "inverse" time-evolving systems. Following that, Tong et al. (2005) showed that the widely used traditional adiabatic conditi
Externí odkaz:
http://arxiv.org/abs/quant-ph/0511141
Autor:
Yahalom, A., Englman, R.
The regimes of growing phases (for electron numbers N~0-8) that pass into regions of self-returning phases (for N>8), found recently in quantum dot conductances by the Weizmann group are accounted for by an elementary Green function formalism, approp
Externí odkaz:
http://arxiv.org/abs/cond-mat/0510689
Autor:
Englman, R., Yahalom, A.
Publikováno v:
"Vibronic Interactions: Jahn-Teller Effect in Crystals and Molecules" p. 5-14 edited by M.D. Kaplan and G.O. Zimmerman (Kluwer Academic Publishers 2001)
In 1937 the Jahn-Teller (JT) effect addressed the instability (potential or actual) of non-linear symmetric molecules with degenerate orbital electronic states. In view of the large variety of JT activity that has taken place since then, we might bro
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407226
Publikováno v:
Physical Review A, 60, 3, 1802-1810 (1999)
For time (t) dependent wave functions we derive rigorous conjugate relations between analytic decompositions (in the complex t-plane) of the phases and of the log moduli. We then show that reciprocity, taking the form of Kramers-Kronig integral relat
Externí odkaz:
http://arxiv.org/abs/quant-ph/0406217