Quantum dynamics of a nanomagnet in a rotating field

Carlos Calero, E. M. Chudnovsky, and D. A. Garanin
Phys. Rev. B 72, 024409 – Published 1 July 2005

Abstract

The quantum dynamics of a two-state spin system in a rotating magnetic field has been studied. Analytical and numerical results for the transition probability have been obtained along the lines of the Landau-Zener-Stueckelberg theory. The effect of various kinds of noise on the evolution of the system has been analyzed.

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  • Received 3 March 2005

DOI:https://doi.org/10.1103/PhysRevB.72.024409

©2005 American Physical Society

Authors & Affiliations

Carlos Calero1, E. M. Chudnovsky1, and D. A. Garanin2

  • 1Physics Department, Lehman College, City University of New York, 250 Bedford Park Boulevard West, Bronx, New York 10468-1589, USA
  • 2Institut für Physik, Johannes-Gutenberg-Universität, D-55099 Mainz, Germany

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Issue

Vol. 72, Iss. 2 — 1 July 2005

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