Improved Taylor Expansion Method in the Ising Model (Condensed Matter and Statistical Physics)

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概要

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• We apply an improved Taylor expansion method, which is a variational scheme to the Ising model in two dimensions. This method enables us to evaluate the free energy and magnetization in strong coupling regions from the weak coupling expansion, even in the case of a phase transition. We determine the approximate value of the transition point using this scheme. In the presence of an external magnetic field, we find both stable and metastable physical states.

• 2006-03-25

著者

• Matsuo Toshihiro

  Theoretical Physics Laboratory The Institute Of Physical And Chemical Research (riken)

• AOYAMA Tatsumi

  Theoretical Physics Laboratory

• Aoyama Tatsumi

  Theoretical Physics Laboratory The Institute Of Physical And Chemical Research (riken)

• SHIBUSA Yuuichirou

  Theoretical Physics Laboratory, RIKEN

• Shibusa Yuuichirou

  Theoretical Physics Laboratory Riken

• Shibusa Yuuichirou

  Theoretical Physics Laboratory The Institute Of Physical And Chemical Research (riken)

• MATSUO Toshihiro

  Theoretical Physics Laboratory, The Institute of Physical and Chemical Research (RIKEN)

関連論文

• Stability of 4-Dimensional Space-Time from the IIB Matrix Model via the Improved Mean Field Approximation(Particles and Fields)
• Improved Taylor Expansion Method in the Ising Model (Condensed Matter and Statistical Physics)
• Path Integral Formulation of Noncommutative Superspace in the IKKT Matrix Model(Particles and Fields)
• Higher Order Terms in the Improved Mean Field Approximation for the IIB Matrix Model and the Emergence of Four-Dimensional Space-Time(Particles and Fields)
• Path Integral Formulation of Noncommutative Superspace in the IKKT Matrix Model(Particles and Fields)

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