Posts by hatsugai
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Multi-fold EP protected by anti-unitary symmetry
Generic degeneracy of a non-hermitian hamiltonian implies a set of the eigenvectors is not enough to span the […]
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3D HOTI of Hubbard model by negative sign free quantum Monte Carlo
Corner states of the breezing Pyrochlore lattice are protected by the Z4 symmetry as a typical example of the […]
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Bulk-edge correspondence of interacting bosonic pump
Topological (adiabatic) pumps are typical problems where the bulk-edge correspondence is justified. The Chern […]
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物質中のフラクタル Hofstadterの蝶
量子力学によると水素原子内の電子は勝手なエネルギーをとれず，離散的になることは高校の物理でも学ぶと思いますが，結晶のなかの電子のエネルギーもまた不連続な値しかとりません。結晶に強磁場を印加したとき，そのエネルギーの値を結 […]
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