0606110v1

related topics
{energy, state, states}
{entanglement, phys, rev}
{energy, gaussian, time}
{information, entropy, channel}
{trap, ion, state}
{cavity, atom, atoms}
{state, states, coherent}

Entanglement in Spin Waves with Binary Dipolar Atoms in a 2D Optical Lattice

H. T. Ng, K. Burnett

abstract: We study the area-dependent entropy and two-site entanglement in the spin waves with binary interacting dipolar Bose-Einstein condensates in a 2D optical lattice. The two species condensates at each site behave like an ensemble of spin-half particles with the interaction to its nearest neighbors and next nearest neighbors. We show that the ground state of a Bose-Einstein condensate lattice with nearest-neighbor and next-nearest-neighbor interactions exhibits spin wave and can be mapped into a harmonic lattice. The critical behavior of the area-dependent entropy and two-site entanglement is examined in the vicinity of a quantum phase transition.

oai_identifier:
oai:arXiv.org:quant-ph/0606110
categories:
quant-ph cond-mat.stat-mech
comments:
5 pages, 3 figures
arxiv_id:
quant-ph/0606110
created:
2006-06-13

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