One-step generation of high-quality squeezed and EPR states in cavity QED

Details One-step generation of high-quality squeezed and EPR states in cavity QED One-step generation of high-quality squeezed and EPR states in cavity QED

2006-02-17

arxiv.org/abs/quant-ph/0602148v1

The European Physical Journal D 32, 147 (2005)

Physics

Quantum Physics

Scientific paper

10.1140/epjd/e2004-00178-y

We show how to generate bilinear (quadratic) Hamiltonians in cavity quantum electrodynamics (QED) through the interaction of a single driven three-level atom with two (one) cavity modes. With this scheme it is possible to generate one-mode mesoscopic squeezed superpositions, two-mode entanglements, and two-mode squeezed vacuum states (such the original EPR state), without the need for Ramsey zones and external parametric amplification. The degree of squeezing achieved is up to 99% with currently feasible experimental parameters and the errors due to dissipative mechanisms become practically negligible.

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