An exactly solvable model of a quantum chain coupled to a cavity photon via dipole interaction yields a closed-form reduced density matrix that reveals logarithmic light-matter and spatial entanglement scaling with system size at strong coupling, arising from photon resolution of collective dipole P
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Numerical calculations reveal a chiral p-wave roton mode at finite momentum and a d-wave nematic mode at zero momentum in the SU(2) symmetric chiral spin liquid phase of the J1-J2-Jχ model.
PT symmetry enriches non-Hermitian critical points with topological nontriviality, robust edge modes, and a quantized imaginary subleading term in entanglement entropy scaling.
A QMC-based framework tests the lattice-Bisognano-Wichmann ansatz for reconstructing entanglement Hamiltonians in 2D systems without Lorentz invariance or translational symmetry, finding good accuracy for ordinary boundaries.
Derives exact bulk-boundary correspondence allowing extraction of edge-mode degeneracy from bulk entanglement spectrum in critical free-fermion systems of arbitrary dimensions.
Perturbations to the chiral Z_p toric code induce Hall-on-Toric descendant states featuring fractional Z_p charges and increased topological degeneracy, identified via iDMRG analysis of entanglement and generalized Hall conductance.
Electric field enhances ring exchange relative to Heisenberg interactions, shifting the CSL phase boundary to smaller t/U in the ring exchange model on the triangular lattice.
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Logarithmic Entanglement and Emergent Dipole Symmetry from a Strongly Coupled Light-Matter Quantum Circuit
An exactly solvable model of a quantum chain coupled to a cavity photon via dipole interaction yields a closed-form reduced density matrix that reveals logarithmic light-matter and spatial entanglement scaling with system size at strong coupling, arising from photon resolution of collective dipole P
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Collective excitations in chiral spin liquid: chiral roton and long-wavelength nematic mode
Numerical calculations reveal a chiral p-wave roton mode at finite momentum and a d-wave nematic mode at zero momentum in the SU(2) symmetric chiral spin liquid phase of the J1-J2-Jχ model.
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PT symmetry-enriched non-unitary criticality
PT symmetry enriches non-Hermitian critical points with topological nontriviality, robust edge modes, and a quantized imaginary subleading term in entanglement entropy scaling.
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Exploring the limit of the Lattice-Bisognano-Wichmann form describing the Entanglement Hamiltonian: A quantum Monte Carlo study
A QMC-based framework tests the lattice-Bisognano-Wichmann ansatz for reconstructing entanglement Hamiltonians in 2D systems without Lorentz invariance or translational symmetry, finding good accuracy for ordinary boundaries.
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Generalized Li-Haldane Correspondence in Critical Dirac-Fermion Systems
Derives exact bulk-boundary correspondence allowing extraction of edge-mode degeneracy from bulk entanglement spectrum in critical free-fermion systems of arbitrary dimensions.
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Hall-on-Toric: Descendant Laughlin state in the chiral $\mathbb{Z}_p$ toric code
Perturbations to the chiral Z_p toric code induce Hall-on-Toric descendant states featuring fractional Z_p charges and increased topological degeneracy, identified via iDMRG analysis of entanglement and generalized Hall conductance.
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Electric field control of a quantum spin liquid in weak Mott insulators
Electric field enhances ring exchange relative to Heisenberg interactions, shifting the CSL phase boundary to smaller t/U in the ring exchange model on the triangular lattice.