Spin Bath Decoherence Mediated by Phonons

Details Spin Bath Decoherence Mediated by Phonons Spin Bath Decoherence Mediated by Phonons

2008-08-18

arxiv.org/abs/0808.2348v1

Solid State Communications 148, 237 (2008)

Physics

Quantum Physics

8 pages, no figures, to appear in Solid State Communications

Scientific paper

10.1016/j.ssc.2008.08.008

We introduce an exactly solvable model to study decoherence of a central spin interacting with a spin bath where the coupling is mediated by phonons which we assume to be in a coherent state or thermal distribution. For the coherent state case, we find that the decoherence factor decays in a Gaussian fashion and it becomes independent of the phonon frequencies at short times. If the phonon energies are much larger than spin-phonon coupling or bath spins are fully polarized, decoherence time becomes independent of the initial phonon state. For the thermal state case, phonons play more important role in decoherence with increasing temperature. We also discuss possible effects of the temperature on spin bath contribution to decoherence.

Affiliated with

Also associated with

No associations

Rating

Spin Bath Decoherence Mediated by Phonons does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spin Bath Decoherence Mediated by Phonons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin Bath Decoherence Mediated by Phonons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-697392