Topological Band Theory for Non-Hermitian Hamiltonians.
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DOI: 10.1103/physrevlett.120.146402
Abstract: We develop the topological band theory for systems described by non-Hermitian Hamiltonians, whose energy spectra are generally complex. After generalizing the notion of gapped band structures to the non-Hermitian case, we classify "gapped" bands in… read more here.
Keywords: band theory; hermitian hamiltonians; topological band; band ... See more keywords
Husimi Dynamics Generated by non-Hermitian Hamiltonians.
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DOI: 10.1103/physrevlett.130.157202
Abstract: The dynamics generated by non-Hermitian Hamiltonians are often less intuitive than those of conventional Hermitian systems. Even for models as simple as a complexified harmonic oscillator, the dynamics for generic initial states shows surprising features.… read more here.
Keywords: hermitian hamiltonians; non hermitian; dynamics generated; generated non ... See more keywords