Atomic ensemble entangled

This part addresses mesoscopic systems as diverse as SQUIDS, Bose condensates, trapped atomic ensembles, electronic inerferometers and micromasers. It shows that coherence and entanglement can persist in such systems ... 

One may envision extensions of the present approach to matter teleportation [Opatrny 2001] and quantum computation based on continuous variables [Braunstein 1998 (a) Lloyd 1998 Lloyd 1999], Such extensions may involve the coupling of entangled atomic ensembles in optical lattices by photons carrying quantum information. 

This part is concerned with the quantum dynamics of molecules and ensembles of trapped cold atoms and the effect of internal-translational entanglement on interference and diffraction ... 

EPR entanglement in off-resonantly driven mixing systems [38], First we consider the Lambda system, as shown in Fig. 1. An ensemble of N atoms is placed in a two-mode optieal cavity. Two metastable states of the a-atom are denoted by 1 ) and 2 ) and the excited state is indicated by 3 ). Two external driving fields of eircular frequencies codi and are applied to the dipole-allowed transitions 1, 2 )- 3 ). Two cavity fields of cireular frequencies i and 2 are generated from these two transitions, respectively. The master equation for the density operator p of the atom-field system is written in Ae dipole approximation and in an appropriate rotating frame as [82-84]... 

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