arXiv:1206.2200 · Physical Review B

Damping and decoherence of Fock states in a nanomechanical resonator due to two-level systems

Laura G. Remus, M. P. Blencowe

Published Nov 15, 2012• 6 citations

Abstract

We numerically investigate the decay of initial quantum Fock states and their superpositions for a mechanical resonator mode coupled to an environment comprising interacting, damped tunneling two-level system (TLS) defects. The cases of one, three, and six near-resonant, interacting TLS's are considered in turn, and it is found that, with even as few as three TLS's, the resonator's quantum decay behavior is indistinguishable from that due to coupling to an Ohmic oscillator bath.

DOI: 10.1103/physrevb.86.205419

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