Spontaneous Dressed-State Polarization in the Strong Driving Regime of Cavity QED
We utilize high-bandwidth phase-quadrature homodyne measurement of the light transmitted through a Fabry-Perot cavity, driven strongly and on resonance, to detect excess phase noise induced by a single intracavity atom. We analyze the correlation properties and driving-strength dependence of the atom-induced phase noise to establish that it corresponds to the long-predicted phenomenon of spontaneous dressed-state polarization. Our experiment thus provides a demonstration of cavity quantum electrodynamics in the strong-driving regime in which one atom interacts strongly with a many-photon cavity field to produce novel quantum stochastic behavior.
Additional Information© 2009 The American Physical Society. Received 27 July 2009; published 20 October 2009. This work was supported by the NSF under PHY- 0354964, by the ONR under N00014-05-1-0420, and by the ARO under W911NF-09-1-0045. A. E. M. acknowledges support from the Hertz Foundation. We thank David Miller for discussions and Dmitri Pavlichin for crucial technical assistance in the preparation of Fig. 4.
Published - Armen2009p6263Phys_Rev_Lett.pdf