Atomic entanglement generation and detection via degenerate four-wave mixing of a Bose-Einstein condensate in an optical lattice

作者：Ferris Andrew J^*; Olsen Murray K; Davis Matthew J

来源：Physical Review A, 2009, 79(4): 043634.

DOI：10.1103/PhysRevA.79.043634

• atom-photon collisions
• Bose-Einstein condensation
• multiwave mixing
• optical lattices
• quantum entanglement

The unequivocal detection of entanglement between two distinct matter-wave pulses is a significant challenge that has yet to be experimentally demonstrated. We describe a realistic scheme to generate and detect continuous-variable entanglement between two atomic matter-wave pulses produced via degenerate four-wave mixing from an initially trapped Bose-Einstein condensate loaded into a one-dimensional optical lattice. We perform a comprehensive numerical investigation for fixed condensate parameters to determine the maximum violation of separability and Einstein-Podolsky-Rosen inequalities for field quadrature entanglement, and describe and simulate an experimental scheme for measuring the necessary quadratures.

• 出版日期2009-4