In a generalized non-Hermitian Rice-Mele model, next-nearest-neighbor hopping leaves exceptional-point loci unchanged under periodic boundaries but shifts existing points and creates new ones under open boundaries, producing size-dependent degeneracies and a boundary-specific topological gap-closing
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A non-unitary cMERA on a non-Hermitian fermion chain yields emergent de Sitter spacetime whose null horizons are encoded by zero-cost tensor links that reproduce the logarithmic entanglement entropy scaling.
Generalized quantum dimensions from SymTFTs classify massless and massive RG flows in pseudo-Hermitian systems and relate coset constructions to domain walls.
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Exceptional by Design: Long-Range Hopping as a Knob for Exceptional Point Control
In a generalized non-Hermitian Rice-Mele model, next-nearest-neighbor hopping leaves exceptional-point loci unchanged under periodic boundaries but shifts existing points and creates new ones under open boundaries, producing size-dependent degeneracies and a boundary-specific topological gap-closing
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Emergent de Sitter Space and Non-Unitary Tensor Networks from Non-Hermitian Quantum Criticality
A non-unitary cMERA on a non-Hermitian fermion chain yields emergent de Sitter spacetime whose null horizons are encoded by zero-cost tensor links that reproduce the logarithmic entanglement entropy scaling.
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Generalizing quantum dimensions: Symmetry-based classification of local pseudo-Hermitian systems and the corresponding domain walls
Generalized quantum dimensions from SymTFTs classify massless and massive RG flows in pseudo-Hermitian systems and relate coset constructions to domain walls.