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Comparison between decoherence time for a two-state spin 1/2 system with its corresponding quantum retrieval period

Shafiee, A ; Sharif University of Technology | 2011

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  1. Type of Document: Article
  2. DOI: 10.2478/s11534-011-0047-y
  3. Publisher: 2011
  4. Abstract:
  5. The evolution of a two-state quantum system (a spin 1/2 particle) in both the framework of standard quantum mechanics and under the decoherence regime is considered. The former approach on this issue is the well-known quantum flipping process of a dichotomic system subjected to a time-dependent magnetic field. In the latter approach, the Spin-Boson model is utilized to describe the interaction of system with its environment and the Born-Markov master equation is derived to obtain the decoherence time. It is possible to show that under certain conditions, one may find a potential conflict between the predictions of decoherence theory and the result observed in a typical quantum flipping experiment
  6. Keywords:
  7. Decoherence ; Decoherence time ; Duantum flipping ; Duantum to classical transition
  8. Source: Central European Journal of Physics ; Volume 9, Issue 6 , 2011 , Pages 1410-1420 ; 18951082 (ISSN)
  9. URL: http://www.degruyter.com/view/j/phys.2011.9.issue-6/s11534-011-0047-y/s11534-011-0047-y.xml