Non-equilibrium reversible dynamics of work production in four-spin system in a magnetic field

Details Non-equilibrium reversible dynamics of work production in four-spin system in a magnetic field Non-equilibrium reversible dynamics of work production in four-spin system in a magnetic field

2009-01-23

arxiv.org/abs/0901.3637v3

Condens. Matter Phys., 2011, vol. 14, No. 2, 23005:1-12

Physics

Condensed Matter

Statistical Mechanics

12 pages, 3 figures, published version, title changed

Scientific paper

10.5488/CMP.14.23005

A closed system of the equations for the local Bloch vectors and spin correlation functions is obtained by decomplexification of the Liouville-von Neumann equation for 4 magnetic particles with the exchange interaction that takes place in an arbitrary time-dependent external magnetic field. The analytical and numerical analysis of the quantum thermodynamic variables is carried out depending on separable mixed initial state and the magnetic field modulation. Under unitary evolution, non-equilibrium reversible dynamics of power production in the finite environment is investigated.

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