Implementation of Spin Hamiltonians in Optical Lattices

Details Implementation of Spin Hamiltonians in Optical Lattices Implementation of Spin Hamiltonians in Optical Lattices

2004-04-23

arxiv.org/abs/cond-mat/0404566v2

Phys. Rev. Lett. 93, 250405 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevLett.93.250405

We propose an optical lattice setup to investigate spin chains and ladders. Electric and magnetic fields allow us to vary at will the coupling constants, producing a variety of quantum phases including the Haldane phase, critical phases, quantum dimers etc. Numerical simulations are presented showing how ground states can be prepared adiabatically. We also propose ways to measure a number of observables, like energy gap, staggered magnetization, end-chain spins effects, spin correlations and the string order parameter.

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