Quantum phase gate and controlled entanglement with polar molecules

Details Quantum phase gate and controlled entanglement with polar molecules Quantum phase gate and controlled entanglement with polar molecules

2006-08-23

arxiv.org/abs/quant-ph/0608182v2

Physical Review A / Physical Review A (General Physics); Phys Rev A Gen Phys; Physical Review A (Atomic Molecular and Optical

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.75.033414

We propose an alternative scenario for the generation of entanglement between rotational quantum states of two polar molecules. This entanglement arises from dipole-dipole interaction, and is controlled by a sequence of laser pulses simultaneously exciting both molecules. We study the efficiency of the process, and discuss possible experimental implementations with cold molecules trapped in optical lattices or in solid matrices. Finally, various entanglement detection procedures are presented, and their suitability for these two physical situations is analyzed.

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