The van Hemmen spin glass revisited |
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| Authors: | T Celik U H E Hansmann M Katoot |
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| Institution: | (1) Supercomputer Computations Research Institute (SCRI), Florida State University, 32306 Tallahassee, Florida, USA;(2) Department of Physics, Florida State University, 32306 Tallahassee, Florida, USA;(3) Department of Physical Sciences, Embry-Riddle Aeronautical University (ERAU), 32114 Daytona Beach, Florida, USA |
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| Abstract: | We simulated the van Hemmen spin glass model by multicanonical algorithm. The exact results for this mean-field model are reproduced. Physical quantities such as energy density, specific heat, susceptibility and order parameters are evaluated at all temperatures. We also studied an alternate model with short range interactions, which displays the many-valley picture in 2D for random variables having values ±1.On leave of the absence from Department of Physics Engineering, Hacettepe University, Ankara, Turkey. |
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| Keywords: | Monte Carlo multicanonical ensemble spin glasses van Hemmen model |
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