Analogue of Cavity QED for Coupling between Spin and Nanomechanical Resonator

Details Analogue of Cavity QED for Coupling between Spin and Nanomechanical Resonator Analogue of Cavity QED for Coupling between Spin and Nanomechanical Resonator

2006-02-27

arxiv.org/abs/quant-ph/0602219v2

A shorten version was published on Phys. Rev. B 75, 033407 (2007)

Physics

Quantum Physics

7 pages, 5 figures

Scientific paper

10.1103/PhysRevB.75.033407

We describe a cavity QED analogue for the coupling system of a spin and a nanomechanical resonator with a magnetic tip. For the quantized nanomechanical resonator, a spin-boson model for this coupling system can refer to a Jaynes-Cummings(JC) or an anti-JC model. These observations predict some quantum optical phenomena, such as squeezing and "collapse-revival" in the single oscillation mode of the nanomechanical resonator when it is initially prepared in the quasi-classical state. By modulating the phase of RF magnetic field one can switch the system between the JC and anti-JC model, which provides a potential protocol for the detection of the single spin. A damping mechanism is also analyzed.

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