Ground State Quantum Coherences: from Quantum Beats to Strong Control

Abstract

Second order correlations reveal quantum beats from a coherent ground-state superposition on the undriven mode of a two-mode cavity QED system. Continuous drive induces decoherence due to Rayleigh scattering. We control this with feedback and explore postselection techniques to extract specific behavior.

13 pages, 5 figures, Coherence and Quantum Optics X (CQOX) and Quantum Information and Measurement meeting (QIM2). arXiv admin note: text overlap with arXiv:1301.3000