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Updated: Jan 7, 2026

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

ハニカム格子上のスピン1イジング模型における複素温度平面上の分配関数ゼロ

Seung-Yeon Kim¹

¹School of Liberal Arts and Sciences, Korea National University of Transportation, Chungju 27469, Republic of Korea.

Entropy (Basel, Switzerland)

|December 24, 2025

Abstract:

The spin-one Ising model on the honeycomb lattice has never been solved exactly in spite of its simplicity. Even its exact critical temperature is not known. The exact integer values for the density of states of the spin-one Ising model on the L×2L honeycomb lattice are enumerated up to L=14. The partition function zeros in the complex temperature plane of the spin-one Ising model on the L×2L honeycomb lattice are exactly obtained, using the density of states. The properties of the partition function zeros in the complex temperature plane are related to the behaviors of various thermodynamic functions, in particular, their singular behaviors. The unknown properties of the spin-one Ising model on the honeycomb lattice are investigated, based on its partition function zeros in the complex temperature plane.

キーワード:

ハニカム格子分配関数ゼロスピン1イジング模型

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