Gaugeon Formalism for Spin-3/2 Rarita-Schwinger Gauge Field

We provide a gauge covariant formalism of the canonically quantized theory of spin-3/2 Rarita-Schwinger gauge field. The theory admits a quantum gauge transformation by which we can shift the gauge fixing parameter. The quantum gauge transformation does not change the BRST charge. Thus, the physical Hilbert space is trivially independent of the gauge fixing parameter.Comment: 13 pages, no figures, LaTe

Cluster Heat Bath Algorithm in Monte Carlo Simulations of Ising Models

We have proposed a cluster heat bath method in Monte Carlo simulations of Ising models in which one of the possible spin configurations of a cluster is selected in accordance with its Boltzmann weight. We have argued that the method improves slow relaxation in complex systems and demonstrated it in an axial next-nearest-neighbor Ising(ANNNI) model in two-dimensions.Comment: 10 pages, REVTeX, 2 figures, to appear in Phys.Rev.Let

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京都大学新制・課程博士博士(医科学)甲第23610号医科博第133号京都大学大学院医学研究科医科学専攻(主査)教授 松田 道行, 教授 林 康紀, 教授 安達 泰治学位規則第4条第1項該当Doctor of Medical ScienceKyoto UniversityDFA