Using interference for high fidelity quantum state transfer in optomechanics

Details Using interference for high fidelity quantum state transfer in optomechanics Using interference for high fidelity quantum state transfer in optomechanics

2011-10-23

arxiv.org/abs/1110.5074v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 2 figures

Scientific paper

We revisit the problem of using a mechanical resonator to perform the transfer of a quantum state between two electromagnetic cavities (e.g. optical and microwave). We show that this system possesses an effective mechanical dark state which is immune to mechanical dissipation; utilizing this feature allows highly efficient transfer of intra-cavity states, as well as of itinerant photon states. We provide simple analytic expressions for the fidelity of transferring both Gaussian and non-Gaussian states.

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