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Simulation of gauge transformations on systems of ultracold atoms (1009.1552v1)
Published 8 Sep 2010 in cond-mat.quant-gas, hep-th, and quant-ph
Abstract: We show that gauge transformations can be simulated on systems of ultracold atoms. We discuss observables that are invariant under these gauge transformations and compute them using a tensor network ansatz that escapes the phase problem. We determine that the Mott-insulator-to-superfluid critical point is monotonically shifted as the induced magnetic flux increases. This result is stable against the inclusion of a small amount of entanglement in the variational ansatz.
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