Quantum state transfer between field and atoms in Electromagnetically Induced Transparency

Aurelien Dantan (1) , Michel Pinard (1)

1 LKB (Jussieu) - Laboratoire Kastler Brossel

We show that a quasi-perfect quantum state transfer between anatomic ensemble and fields in an optical cavity can be achieved inElectromagnetically Induced Transparency (EIT). A squeezedvacuum field state can be mapped onto the long-lived atomic spinassociated to the ground state sublevels of the Lambda-typeatoms considered. The EIT on-resonance situation show interesting similaritieswith the Raman off-resonant configuration. We then show how totransfer the atomic squeezing back to the field exiting the cavity,thus realizing a quantum memory-type operation.

Domaines: Physique Quantique [quant-ph]

Aurelien Dantan, Michel Pinard. Quantum state transfer between field and atoms in Electromagnetically Induced Transparency. Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2004, 69, pp.043810. ⟨hal-00000983⟩