Pure phase decoherence in a ring geometry

Z. Zhu, A. Aharony, O. Entin-Wohlman, P. C.E. Stamp

Research output: Contribution to journalArticlepeer-review

Abstract

We study the dynamics of pure phase decoherence for a particle hopping around an N-site ring, coupled both to a spin bath and to an Aharonov-Bohm flux which threads the ring. Analytic results are found for the dynamics of the influence functional and of the reduced density matrix of the particle, both for initial single wave-packet states, and for states split initially into two separate wave packets moving at different velocities. We also give results for the dynamics of the current as a function of time.

Original languageEnglish
Article number062127
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume81
Issue number6
DOIs
StatePublished - 25 Jun 2010

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