麻省理工学院

摘要：Band theory and the theory of quasiparticles are the two foundations of quantum theory of solids. As the modern development of band theory, the topological band theory provides a unified framework for various phenomena. In this talk, we incoporate the theory of quasiparticles with topological band theory by introducing non-Hermiticity. We show that both the bulk Fermi arc and the quantum oscillation of in-gap quasiparticles are natural predictions of our theory.

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