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191 125 (0,343s)

Result

Non-equilibrium dynamics of open systems and fluctuation-dissipation theorems

The Non-Equilibrium Fluctuation-Dissipation Theorem is formulated within the Non-Equilibrium Green Function formalism.nThe relation of this theorem to a simplified kinetic theory of non-<...

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2017
  • Jimp
  • Link
Result

Long and short time quantum dynamics: I. Between Green's functions and transport equations

This paper summarizes the present views on construction of the electron quantum transport equations based on the Non-Equilibrium Green's Functions approach (NGF, reducinga full description of a non-equ...

BE - Teoretická fyzika

  • 2005
  • Jx
Result

Long and short time quantum dynamics: II. KInetic regime

The article reports how transport equations for Non-equilibrium Green's functions (NGF) reduce to quantum kinetic equations in the kinetic regime. By the method of NGF, the kinetic equations for dense Fermi liquids...

BE - Teoretická fyzika

  • 2005
  • Jx
Result

Dynamics of mesoscopic systems: Non-equilibrium Green's functions approach

We give an overview of the use of NGF for describing non-equilibrium dynamics of mesoscopic system. Special attention is paid to the problem of correlated initial conditions. An extended reconstruction theorem stating that the compl...

BM - Fyzika pevných látek a magnetismus

  • 2010
  • Jx
Result

Theory of transport in condensed matter

Theory of many-fermion systems out of equilibrium is developed starting from the historical Boltzmann equation over the Vlasov equation and the Landau concept of quasiparticles to the non-equilibrium quantum field methods....

BE - Teoretická fyzika

  • 2007
  • B
Result

Transient magnetic currents through a molecular bridge: limits to reduction of non-equilibrium Green's functions to a generalized master equation

by sudden switching of the junctions.The process is treated numerically using the non-equilibrium Greens functions (NEGF) from the early stages of the transient depending by an Anderson type local center . The tun...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2017
  • Jimp
  • Link
Result

Long and short time quantum dynamics III. Transients,

Nonequilibrium Green's functions transport equations are reduced to the quantum transport equations for fast transients which havethe structure of a Generalized Master Equations for the single-particle distribution, with causal memo...

BE - Teoretická fyzika

  • 2005
  • Jx
Result

Photoexcited transients in disordered semiconductors: Quantum coherence at very short to intermediate times.

We study electron transient in semiconductor alloys excited by ultrafast strong light pulses using non-equilibrium Green functions....

BM - Fyzika pevných látek a magnetismus

  • 2002
  • Jx
Result

Correlated initial condition for an embededded process by time partitioning

tudy of transients in the electron quantum transport by Non-Equilibrium Green's Functions (NGF) often requires an explicit inclusion of correlations at a finite initial time. For processes embedded in a host proces...

BM - Fyzika pevných látek a magnetismus

  • 2010
  • Jx
Result

Green's function approach to the non-equilibrium superconductivity near the critical line

an alternative theory of the non-equilibrium superconductivity dealing exclusively is extended to non-equilibrium. The problem of selfconsistency of the T-matrix......

BM - Fyzika pevných látek a magnetismus

  • 2016
  • D
  • Link
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