Manipulation and storage of optical field and atomic ensemble quantum   states
  We study how to efficiently manipulate and store quantum information between optical fields and atomic ensembles. We show how various non-dissipative transfer schemes can be used to transfer and store quantum states such as squeezed vacuum states or entangled states into the long-lived ground state spins of atomic ensembles. 
Aurelien Dantan (LKB - Jussieu), Alberto Bramati (LKB - Jussieu),   Michel Pinard (LKB - Jussieu), Elisabeth Giacobino (LKB ...