Redfield Dynamics of a Quantum Spherical Spin

  • M. T. Pérez-Maldonado Group of Theory of Nano-structures, Department of Theoretical Physics. Physics Faculty, University of Havana, Havana 10400, Cuba
  • G. Monsivais Instituto de Física, Universidad Nacional Autónoma de México
  • Roberto Mulet Group of Complex Systems and Statistical Physics, Department of Theoretical Physics. Physics Faculty, University of Havana, Havana 10400, Cuba http://orcid.org/0000-0001-5168-5116

Abstract

The temporal evolution of a quantum spherical spin in contact with a thermal bath is studied by solving the exact Redfield equation, in order to evaluate the effect of the frequently used Lindblad approximation. This simple model can be used as a starting point for the study of more complex open quantum systems. Significant discrepancies are observed for short times. In the equilibrium state both models give identical results, as expected.

Published
Dec 10, 2017
How to Cite
PÉREZ-MALDONADO, M. T.; MONSIVAIS, G.; MULET, Roberto. Redfield Dynamics of a Quantum Spherical Spin. Revista Cubana de Física, [S.l.], v. 34, n. 2, p. 158-162, dec. 2017. ISSN 2224-7939. Available at: <http://www.revistacubanadefisica.org/index.php/rcf/article/view/RCF_2017_34_2_158>. Date accessed: 17 jan. 2018.
Section
Original Articles