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Proceedings Paper

Quantum and classical correlations in high temperature dynamics of two coupled large spins
Author(s): V. E. Zobov
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Paper Abstract

We study dynamical correlations of two coupled large spins depending on the time and on the spin quantum numbers. In the high-temperature approximation, we obtain analytical expressions for the mutual informations, quantum and classical parts of correlations. The latter was obtained performing the non-orthogonal projective (POVM) measurements onto the spin coherent states of two spins or one spin, as well as by means of the orthogonal projective measurement of von Neumann. Contribution from quantum correlations is much less than that from classical ones and decreasing with the increase in spin quantum numbers at short times. However, it is not so in a time equal to half of the quantum period.

Paper Details

Date Published: 3 January 2013
PDF: 10 pages
Proc. SPIE 8700, International Conference Micro- and Nano-Electronics 2012, 87001D (3 January 2013); doi: 10.1117/12.2016982
Show Author Affiliations
V. E. Zobov, Kirensky Institute of Physics (Russian Federation)

Published in SPIE Proceedings Vol. 8700:
International Conference Micro- and Nano-Electronics 2012
Alexander A. Orlikovsky, Editor(s)

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