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On the Coexistence of Diagonal and off-Diagonal Long-Range Order, a Monte Carlo Study

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      Abstract

      The zero temperature properties of interacting 2 dimensional lattice bosons are investigated. We present Monte Carlo data for soft-core bosons that demonstrate the existence of a phase in which crystalline long-range order and off-diagonal long-range order (superfluidity) coexist. We comment on the difference between hard and soft-core bosons and compare our data to mean-field results that predict a larger coexistence region. Furthermore, we determine the critical exponents for the various phase transitions.

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      Boson localization and the superfluid-insulator transition

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        Theory of one- and two-dimensional magnets with an easy magnetization plane. II. The planar, classical, two-dimensional magnet

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          Presence of quantum diffusion in two dimensions: Universal resistance at the superconductor-insulator transition

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            Author and article information

            Journal
            08 December 1993
            cond-mat/9312034
            10.1103/PhysRevLett.72.3598
            Custom metadata
            7 pages and 8 figures appended in postscript, KA-TFP-93-05
            cond-mat

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