Field squeeze operators in optical cavities with atomic ensembles

Abstract

We propose a method of generating unitarily single and two-mode field squeezing in an optical cavity with an atomic cloud. Through a suitable laser system, we are able to engineer a squeeze field operator decoupled from the atomic degrees of freedom, yielding a large squeeze parameter that is scaled up by the number of atoms, and realizing degenerate and non-degenerate parametric amplification. By means of the input-output theory we show that ideal squeezed states and perfect squeezing could be approached at the output. The scheme is robust to decoherence processes.

Four pages and one figure. Accepted in Physical Review Letters

References in corpus (9)

• Experimental long-lived entanglement of two macroscopic objects
• Vacuum-Stimulated Raman Scattering based on Adiabatic Passage in a High-Finesse Optical Cavity
• Discrete entanglement distribution with squeezed light
• Experimental demonstration of continuous variable polarization entanglement
• Continuous variable entanglement using cold atoms
• Light-Matter Quantum Interface
• Entangling atoms in bad cavities
• Entanglement and entropy engineering of atomic two-qubit states
• A pulsed source of continuous variable polarization entanglement

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• Robust entanglement generation by reservoir engineering
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• Quantum Communications with Compressed Decoherence Using Bright Squeezed Light
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