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arXiv · 1107.3915

Comparison between Decoherence time for a Two-state Spin 1/2 System with Its Corresponding Quantum Retrieval Period

Afshin Shafiee·Arash Tirandaz
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Abstract

We consider 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. 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, utilizing the Spin-Boson model to describe the interaction of system with its environment, we derive the Born-Markov master equation to obtain the decoherence time. It is possible to show that under some legitimate conditions, one may find a potential conflict between the predictions of decoherence theory and the result observed in a typical quantum flipping experiment.

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Afshin Shafiee, Arash Tirandaz. 2011-07-20. Comparison between Decoherence time for a Two-state Spin 1/2 System with Its Corresponding Quantum Retrieval Period. https://doi.org/10.2478/s11534-011-0047-y

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