Numerical evidence shows multiple Rényi defect universality classes at O(3) quantum critical points depending on entanglement cut type, with a possible phase transition on the defect for extraordinary cuts as the Rényi index varies.
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Two coupled frustrated Haldane chains show an extended Ashkin-Teller quantum phase transition separating a plaquette phase from a uniform disordered phase, with connections to Haldane and dimerized phases via Gaussian and Ising transitions.
Permutation defects between wavefunction replicas yield multipartite entanglement measures that capture the chiral central charge from bulk states in chiral topological phases.
Coupling to mesoscopic reservoirs generates temperature-increasing entropic barriers that suppress topological defect creation and transport, yielding three-regime correlation lengths in 1D Ising chains and double error reduction in finite-size 2D toric codes.
Time evolution of genuine multipartite negativity in the open Kitaev quantum spin liquid shows persistence in loopy subregions in Markovian regime and at higher temperatures in non-Markovian regime.
In the non-Hermitian XY model the scaling of ground-state correlations and entanglement entropy remains identical to the Hermitian version because Z2 symmetry breaking produces the ferromagnetic phase while U(1) symmetry emergence plus real-energy degeneracy produces the Luttinger liquid phase with
citing papers explorer
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Criticality on R\'enyi defects at (2+1)$d$ O(3) quantum critical points
Numerical evidence shows multiple Rényi defect universality classes at O(3) quantum critical points depending on entanglement cut type, with a possible phase transition on the defect for extraordinary cuts as the Rényi index varies.
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Extended Ashkin-Teller transition in two coupled frustrated Haldane chains
Two coupled frustrated Haldane chains show an extended Ashkin-Teller quantum phase transition separating a plaquette phase from a uniform disordered phase, with connections to Haldane and dimerized phases via Gaussian and Ising transitions.
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Probing chiral topological states with permutation defects
Permutation defects between wavefunction replicas yield multipartite entanglement measures that capture the chiral central charge from bulk states in chiral topological phases.
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Entropic Barriers and the Kinetic Suppression of Topological Defects
Coupling to mesoscopic reservoirs generates temperature-increasing entropic barriers that suppress topological defect creation and transport, yielding three-regime correlation lengths in 1D Ising chains and double error reduction in finite-size 2D toric codes.
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Fate of entanglement in open quantum spin liquid: Time evolution of its genuine multipartite negativity upon sudden coupling to a dissipative bosonic environment
Time evolution of genuine multipartite negativity in the open Kitaev quantum spin liquid shows persistence in loopy subregions in Markovian regime and at higher temperatures in non-Markovian regime.
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Survival of Hermitian Criticality in the Non-Hermitian Framework
In the non-Hermitian XY model the scaling of ground-state correlations and entanglement entropy remains identical to the Hermitian version because Z2 symmetry breaking produces the ferromagnetic phase while U(1) symmetry emergence plus real-energy degeneracy produces the Luttinger liquid phase with