Zobrazeno 1 - 10
of 299
pro vyhledávání: '"Morozov, V. G."'
Autor:
Ignatyuk, V. V., Morozov, V. G.
The non-Markovian master equation for open quantum systems is obtained by generalization of the standard Zwanzig-Nakajima (ZN) projection technique. To this end, a coupled chain of equations for the reduced density matrices of the bath $\varrho_{B}(t
Externí odkaz:
http://arxiv.org/abs/2112.05595
Autor:
Ignatyuk, V. V., Morozov, V. G.
The non-Markovian master equation for open quantum systems is obtained by generalization of the ordinary Zwanzig-Nakajima (ZN) projection technique. To this end, a coupled chain of equations for the reduced density matrices of the bath $\varrho_{B}(t
Externí odkaz:
http://arxiv.org/abs/1911.12312
Autor:
Ignatyuk, V. V., Morozov, V. G.
The influence of the initial preparation on dephasing in open quantum dynamics is studied using an exactly solvable model of a two-level system (qubit) interacting with a bosonic bath. It is found that for some classes of non-selective preparation me
Externí odkaz:
http://arxiv.org/abs/1504.05244
Autor:
Ignatyuk, V. V., Morozov, V. G.
Publikováno v:
Condens. Matter Phys., 2013, vol. 16, No. 3, 34001
We study the bath dynamics in the dephasing model of a two-state quantum system (qubit) coupled to an environment of harmonic oscillators. This model was shown [Morozov et al., Phys. Rev. A, 2012, 85, 022101] to admit the analytic solution for the qu
Externí odkaz:
http://arxiv.org/abs/1310.1236
Autor:
Morozov, V. G., Röpke, G.
Publikováno v:
Condens. Matter Phys., 2012, vol. 15, No. 4, 43004:1-9
We present analytical results for the time-dependent information entropy in exactly solvable two-state (qubit) models. The first model describes dephasing (decoherence) in a qubit coupled to a bath of harmonic oscillators. The entropy production for
Externí odkaz:
http://arxiv.org/abs/1212.6135
We study a model of dephasing (decoherence) in a two-state quantum system (qubit) coupled to a bath of harmonic oscillators. An exact analytic solution for the reduced dynamics of a two-state system in this model has been obtained previously for fact
Externí odkaz:
http://arxiv.org/abs/1106.5654
Autor:
Morozov, V. G., Roepke, G.
Many-particle QED is applied to kinetic theory of radiative processes in many- component plasmas with relativistic electrons and nonrelativistic heavy particles. Within the framework of nonequilibrium Green's function technique, transport and mass-sh
Externí odkaz:
http://arxiv.org/abs/0902.0537
We start from the QED Lagrangian to describe a charged many-particle system coupled to the radiation field. A covariant density matrix approach to kinetic theory of QED plasmas, subjected to a strong external electro-magnetic field has recently been
Externí odkaz:
http://arxiv.org/abs/quant-ph/0208083
Kinetic theory of QED plasma in a strong electromagnetic field I. The covariant hyperplane formalism
We develop a covariant density matrix approach to kinetic theory of QED plasmas subjected into a strong external electromagnetic field. A canonical quantization of the system on space-like hyperplanes in Minkowski space and a covariant generalization
Externí odkaz:
http://arxiv.org/abs/physics/0103021
Autor:
Morozov, V. G., Ropke, Gerd
Publikováno v:
J. Stat. Phys. 102 (2001) 285
A link between memory effects in quantum kinetic equations and nonequilibrium correlations associated with the energy conservation is investigated. In order that the energy be conserved by an approximate collision integral, the one-particle distribut
Externí odkaz:
http://arxiv.org/abs/cond-mat/0011073