Parity effects in spin decoherence

A. Melikidze, V. V. Dobrovitski, H. A. De Raedt, M. I. Katsnelson, and B. N. Harmon
Phys. Rev. B 70, 014435 – Published 30 July 2004

Abstract

We demonstrate that decoherence of many-spin systems can drastically differ from decoherence of single-spin systems. The difference originates at the most basic level, being determined by parity of the central system, i.e., by whether the system comprises even or odd number of spin-12 entities. Therefore, it is very likely that similar distinction between the central spin systems of even and odd parity is important in many other situations. Our consideration clarifies the physical origin of the unusual two-step decoherence found previously in the two-spin systems.

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  • Received 11 February 2004

DOI:https://doi.org/10.1103/PhysRevB.70.014435

©2004 American Physical Society

Authors & Affiliations

A. Melikidze1, V. V. Dobrovitski2, H. A. De Raedt3, M. I. Katsnelson4, and B. N. Harmon2

  • 1Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106, USA
  • 2Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
  • 3Applied Physics, Computational Physics, Materials Science Centre, University of Groningen, Nijenborgh 4, NL-9747 AG Groningen, The Netherlands
  • 4Department of Physics, Uppsala University, SE-751 21 Uppsala, Sweden

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Issue

Vol. 70, Iss. 1 — 1 July 2004

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