Posts by hatsugai

2021.10.14 / Published (coming soon)

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 […]
2021.9.10 / Published (coming soon)

Bulk-edge correspondence of interacting bosonic pump

Topological (adiabatic) pumps are typical problems where the bulk-edge correspondence is justified. The Chern […]
2021.9.10 / General article

Hofstadter’s butterfly and TKNN integers

Hofstadter’s butterfly ＆ TKNN integers (Chern numbers)
2021.8.19 / Published (coming soon)

Non real energies for Hermitian problems

Eigenvalues may not be always real for generalized eigenvalue problems even if the Hamiltonian and overlap mat […]
2021.8.17

Multiple quantum scars and dynamics
2021.8.4

One more topological phase with chiral edge states
2021.7.31

Flat bands of COF/MOF in any dimension
2021.7.31

Flat bands and spin-1 Dirac cone
2021.7.22

Reduction of non-hermitian topology in 0-D
2021.7.22

Non-real energies in real world