Thermal entanglement of Bosonic atoms in an optical lattice with nonlinear couplings

Details Thermal entanglement of Bosonic atoms in an optical lattice with nonlinear couplings Thermal entanglement of Bosonic atoms in an optical lattice with nonlinear couplings

2003-10-29

arxiv.org/abs/quant-ph/0310169v2

Physics

Quantum Physics

5 pagues, 3 figures

Scientific paper

The thermal entanglement of two spin-1 atoms with nonlinear couplings in optical lattices is investigated in this paper. It is found that the nonlinear couplings favor the thermal entanglement creating. The dependence of the thermal entanglement in this system on the linear coupling, the nonlinear coupling, the magnetic field and temperature is also presented. The results show that the nonlinear couplings really change the feature of the thermal entanglement in the system, increasing the nonlinear coupling constant increases the critical magnetic field and the threshold temperature.

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