Quantum state transfer from light beams to atomic ensembles
Laboratoire Kastler Brossel, Université Pierre et Marie Curie, 4 place Jussieu, 75252
Paris Cedex 05, France
Corresponding author: a email@example.com
Published online: 15 October 2001
We show the equivalence between an ensemble of two-level atoms driven by a squeezed vacuum field, and a harmonic oscillator coupled to a squeezed field. We give the conditions for optimal squeezing transfer from the field to the atomic ensemble. We show that EPR-type correlations are created between the atomic ensemble and the incoming field.
PACS: 42.50.Lc – Quantum fluctuations, quantum noise, and quantum jumps / 42.50.Dv – Nonclassical field states; squeezed, antibunched, and sub-Poissonian states; operational definitions of the phase of the field; phase measurements
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2001