Closed-form asymptotics for Rényi entropies in the open XX chain give 2k_F oscillations, s^{±1/α} envelopes, and -½ log log ℓ equipartition offset.
Esteve, Fernando Falceto, and Amilcar R
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Critical properties including phase diagrams in non-Hermitian XY models depend on the quantum mechanics formalism and chosen state, with arguments favoring standard quantum mechanics.
Deforming the Kitaev chain ground state with imaginary-time evolution under 1/r^α couplings produces α-dependent infrared regimes without sharp phase transitions at non-zero deformation.
citing papers explorer
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Entanglement in the open XX chain: R\'enyi oscillations, hard-edge crossover, and symmetry resolution
Closed-form asymptotics for Rényi entropies in the open XX chain give 2k_F oscillations, s^{±1/α} envelopes, and -½ log log ℓ equipartition offset.
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Quantum critical properties of non-Hermitian XY models with magnetic field
Critical properties including phase diagrams in non-Hermitian XY models depend on the quantum mechanics formalism and chosen state, with arguments favoring standard quantum mechanics.
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Long-range deformations in Gaussian States
Deforming the Kitaev chain ground state with imaginary-time evolution under 1/r^α couplings produces α-dependent infrared regimes without sharp phase transitions at non-zero deformation.