Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Moulopoulos, Konstantinos"'
We analytically demonstrate the emergence of surface non-Hermitian boundary contributions that appear in an extended form of the quantum Ehrenfest theorem and are crucial (although so far overlooked) in the calculation of optical matrix elements that
Externí odkaz:
http://arxiv.org/abs/1807.10349
Publikováno v:
Advances in Materials Physics and Chemistry, vol. 8 (2018)
We investigate the emerging consequences of an applied strong in-plane electric field on a macroscopically large graphene sheet subjected to a perpendicular magnetic field, by determining in exact analytical form various many-body thermodynamic prope
Externí odkaz:
http://arxiv.org/abs/1802.01966
Consequences of an exceedingly strong electric field (E field) on the ground state energetics and transport properties of a 2D spinless electron gas in a perpendicular magnetic field (a Quantum Hall Effect (QHE) configuration) are investigated to all
Externí odkaz:
http://arxiv.org/abs/1608.08641
By perceiving gauge invariance as an analytical tool in order to get insight into the states of the "generalized Landau problem" (a charged quantum particle moving inside a magnetic, and possibly electric field), and motivated by an early article tha
Externí odkaz:
http://arxiv.org/abs/1609.00041
We point out that two of the most important theorems of Quantum Mechanics, the Ehrenfest theorem and the Hellmann-Feynman theorem, lack in their standard form important information: there are cases where non-Hermitian boundary contributions emerge. T
Externí odkaz:
http://arxiv.org/abs/1605.06534
An extension of the Hellmann-Feynman theorem to one employing dynamical parameters that vary with time according to quantum dynamics is rigorously derived, avoiding any linear response or other approximations. The resulting theorem for the dynamics o
Externí odkaz:
http://arxiv.org/abs/1506.08812
A systematic study of the energetics of electrons in an interface in a magnetic field is reported with exact analytical calculations based on a Landau Level (LL) picture, by serious consideration of the finite thickness of the Quantum Well (QW). The
Externí odkaz:
http://arxiv.org/abs/1305.6578
Autor:
Moulopoulos, Konstantinos
Generalized solutions of the standard gauge transformation equations are presented and discussed in physical terms. They go beyond the usual Dirac phase factors and they exhibit nonlocal quantal behavior, with the well-known Relativistic Causality of
Externí odkaz:
http://arxiv.org/abs/1109.1644
Analytical calculations based on a Landau Level (LL) picture are reported for a many-electron system moving in an interface (with a finite-width Quantum Well (QW)) and in the presence of an external perpendicular magnetic field. They lead to a sequen
Externí odkaz:
http://arxiv.org/abs/1105.6102
Analytical calculations based on a Landau Level (LL) picture are reported for an interface (with a finite-width Quantum Well (QW)) and for a fully three-dimensional charged quantum electronic system in an external magnetic field. They lead to a seque
Externí odkaz:
http://arxiv.org/abs/1101.1307