Quantum entanglement of spin-1 bosons with coupled ground states in optical lattices
arXiv:0906.1686 · doi:10.1088/0953-4075/42/14/145505
Abstract
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.
18 pages, 8 figures. To be published in Journal of Physics B
References in corpus (18)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- The entanglement of indistinguishable particles shared between two parties
- Spin-exchange interactions of spin-one bosons in optical lattices: singlet, nematic and dimerized Phases
- Spin squeezing and pairwise entanglement for symmetric multiqubit states
- Dimer state of spin-1 Bosons in an optical lattice
- Generation of many-particle entanglement in an ion trap by adiabatic ground-state transitions
- Superfluid-Mott Insulator Transition of Spin-1 Bosons in an Optical Lattice
- Criterion for bosonic superfluidity in an optical lattice
- Phases and Transitions in the Spin-1 Bose-Hubbard Model: Systematics of a Mean-field Theory
- Microscopic Wave Functions of Spin Singlet and Nematic Mott States of Spin-One Bosons in High Dimensional Bipartite Lattices
- Spin-1 bosons with coupled ground states in optical lattices
- Magnetic and Superfluid Transitions in the d=1 Spin-1 Boson Hubbard Model
- Entanglement and spin squeezing of Bose condensed atoms
- First- and second-order superfluid--Mott-insulator phase transitions of spin-1 bosons with coupled ground states in optical lattices
- Insulator-Superfluid transition of spin-1 bosons in an optical lattice in magnetic field
- Quantum Phase Transition of Spin-2 Cold Bosons in an Optical Lattice
- Spin squeezing criterion with local unitary invariance
- Interference of atomic levels and superfluid -- Mott insulator phase transition in a two-component Bose-Einstein condensate