The Nature of the Specific Heat of Ising Spin Glass

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概要

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• The specific heat of finite dimensional (two- and three-dimentional) ±J Ising models and infinite-range Ising spin glass (Sherrington-Kirkpatrick (SK) model) has been investigated by Monte Carlo simulations from a new point of view. The region where a part of the specific heat takes a negative value has been investigated, which is characteristic of frustrated systems and reflects the non-trivial degeneracy of the ground state. For each model, the region mentioned above is found to be fairly large in the corresponding phase diagram, which includes the Nishimori line.

• 理論物理学刊行会の論文
• 2005-04-30

著者

• BABA Takanobu

  Department, of Information Science, Graduate School of Engineering, Utsunomiya University

• Baba Takanobu

  Department Of Electrical Engineering Nagaoka University Of Technology

• KITATANI Hidetsugu

  Department of Sciences and Mathematics,Technological University of Nagaoka

• CHINO Toshimasa

  Department of Electrical Engineering, Nagaoka University of Technology

• OHYA Hideshi

  Department of Electrical Engineering, Nagaoka University of Technology

• Ohya Hideshi

  Department Of Electrical Engineering Nagaoka University Of Technology

• Chino Toshimasa

  Department Of Electrical Engineering Nagaoka University Of Technology

• Kitatani Hidetsugu

  Department Of Electrical Engineering Nagaoka University Of Technology

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