KEK素粒子原子核研究所・理論セミナー（山本 直希 准教授）
概要
In this talk, we show that the presence of a magnetic monopole in position space gives rise to a violation of the fermion number conservation in chiral matter. Using the chiral kinetic theory, we derive a model-independent expression of such a violation in nonequilibrium many-body systems of chiral fermions. In local thermal equilibrium at finite temperature and chemical potential, this violation is proportional to the chemical potential with a topologically quantized coefficient. These consequences are due to the interplay between the Dirac monopole in position space and the Berry monopole in momentum space.
カテゴリ
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国際会議・研究会
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コロキウム
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セミナー
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談話会・交流会