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Infinite range Ising spin glass model with a transverse field
Institution:1. Department of Chemistry, University of Milan, INSTM Research Unit, Via C. Golgi 19, 20133 Milano, Italy;2. Istituto di Scienze e Tecnologie Molecolari del CNR (CNR-ISTM), SmartMatLab Centre, Via C. Golgi 19, 20133 Milano, Italy;3. Department of Chemical and Pharmaceutical Sciences of the University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy;1. SISSA, via Bonomea 265, 34136 Trieste, Italy;2. INFN, Sezione di Trieste, Strada Costiera 11, 34151 Trieste, Italy;3. Abdus Salam ICTP, Strada Costiera 11, 34151 Trieste, Italy;4. Physics Department, Princeton University, Princeton, NJ 08544, USA;5. Physics Department, Columbia University, New York, NY 10027, USA;6. ITS, Graduate College of the City University of New York, New York, NY 10016, USA;1. Department of Theoretical Physics, University of Geneva, Switzerland;2. Instituut voor Theoretische Fysica, KU Leuven, Belgium;3. CEREMADE, Université Paris-Dauphine, France;1. Center for Philosophy of Science, University of Pittsburgh, Pittsburgh, PA, USA;2. Department of Philosophy, University of Waterloo, Waterloo, ON N2L 3G1, Canada
Abstract:The infinite range Ising spin glass model with a transverse field is studied by the pair approximation extended to include quantum effects. A mean field equation is obtained and the transition temperature Tc is shown to increase linearly with the transverse field Γ when Γ is small.
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