arXiv:cond-mat/0404566 · Physical Review Letters

Implementation of Spin Hamiltonians in Optical Lattices

Juan José García‐Ripoll, Miguel Angel Martin-Delgado, J. I. Cirac

Published Dec 15, 2004• 234 citations

Abstract

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.

DOI: 10.1103/physrevlett.93.250405

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