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EP and non-Hermitian physics in nonlinearity of eigenvalues
When one considers a frequency dependent system, it can be reduced to an eigen value problem which depends on […]
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ZN Berry phases of Pyrochlore magnet
Various symmetry-protected topological phases of quantum spins on a breathing Pyrochlore are discussed by the […]
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Kagome lattice is chiral symmetric
Chiral symmetry in condensed matter physics implies the sublattice symmetry (as far as the one-particle hoppin […]
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Exceptional points of metamaterials induced by nonlinearity of eigenvalues
Exceptional points (Eps) are common in metamaterials if one generically considers nonlinearity of eigenvalues […]
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