The self-collimation effect induced by non-Hermitian acoustic systems
Sign Up to like & getrecommendations! Published in 2019 at "Applied Physics Letters"
DOI: 10.1063/1.5087162
Abstract: With the proposal of the concept of parity-time-symmetry, more and more exotic properties are being unearthed in non-Hermitian systems. In this work, we investigate the related acoustic feature and phenomenon in two-dimensional phononic crystals with… read more here.
Keywords: direction; collimation; hermitian systems; non hermitian ... See more keywords
Uncertainty relation for non-Hermitian systems
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DOI: 10.1103/physreva.107.042201
Abstract: We construct uncertainty relation for arbitrary finite dimensional PT invariant non-Hermitian quantum systems within a special inner product framework. This construction is led by good observables which are a more general class of operators. We… read more here.
Keywords: non hermitian; relation non; hermitian systems; uncertainty relation ... See more keywords
Polarization and entanglement spectrum in non-Hermitian systems
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DOI: 10.1103/physrevb.105.075103
Abstract: The entanglement spectrum is a useful tool to study topological phases of matter, and contains valuable information about the ground state of the system. Here, we study its properties for free non-Hermitian systems for both… read more here.
Keywords: hermitian systems; polarization entanglement; non hermitian; entanglement spectrum ... See more keywords
Non-Bloch bands in two-dimensional non-Hermitian systems
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DOI: 10.1103/physrevb.107.195112
Abstract: The non-Bloch band theory can describe energy bands in a one-dimensional (1D) non-Hermitian system. On the other hand, whether the non-Bloch band theory can be extended to higher-dimensional non-Hermitian systems is nontrivial. In this work,… read more here.
Keywords: non; two dimensional; non hermitian; hermitian systems ... See more keywords