Quantum entanglement of spin-1 bosons with coupled ground states in optical lattices

Details Quantum entanglement of spin-1 bosons with coupled ground states in optical lattices Quantum entanglement of spin-1 bosons with coupled ground states in optical lattices

2009-06-09

arxiv.org/abs/0906.1686v2

Journal of Physics B 42, 145505 (2009)

Physics

Condensed Matter

Quantum Gases

18 pages, 8 figures. To be published in Journal of Physics B

Scientific paper

We examine particle entanglement, characterized by pseudo-spin squeezing, of spin-1 bosonic atoms with coupled ground states in a one-dimensional optical lattice. Both the superfluid and Mott-insulator phases are investigated separately for ferromagnetic and antiferromagnetic interactions. Mode entanglement is also discussed in the Mott insulating phase. The role of a small but nonzero angle between the polarization vectors of counter-propagating lasers forming the optical lattice on quantum correlations is investigated as well.

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