An unbiased large-N expansion for vestigial orders in density-wave and superconducting systems resolves decoupling ambiguities from symmetry redundancies and reveals generic parameter regions without stable vestigial phases.
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Magnetoelectric response in these chains is driven by virtual s-p interorbital processes that must be restored via vertex corrections in any effective low-energy model.
Fractional winding numbers in open quantum systems recover integer quantization over multiple momentum periods.
In the 3D Hofstadter-Hubbard model, superconductivity occurs for arbitrarily weak attraction below the critical flux for Weyl points with BCS-like gap scaling, but requires finite interaction strength above it.
Hopf terms govern phases in 2D metals near fluctuating magnetic and spin loop-current orders, realizing an SU(2)-protected topological phase with gapped bulk, chiral edges, and quantized spin-Hall conductance.
Path-integral derivation of non-perturbative switching rates for bistable open quantum systems obeying hidden time-reversal symmetry, with direct application to bit-flip rates in dissipative cat qubits.
Authors extend symplectic split-operator integration via phase-space enlargement to classical plasma electron dynamics and to infinite-dimensional TDDFT, and supply a cheap accuracy metric.
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Unbiased large-$N$ approach to competing vestigial orders of density-wave and superconducting instabilities
An unbiased large-N expansion for vestigial orders in density-wave and superconducting systems resolves decoupling ambiguities from symmetry redundancies and reveals generic parameter regions without stable vestigial phases.
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Revisiting magnetoelectric response in collinear antiferromagnetic zigzag chains: A downfolding approach beyond conventional low-energy models
Magnetoelectric response in these chains is driven by virtual s-p interorbital processes that must be restored via vertex corrections in any effective low-energy model.
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Fractional topology and multi-period re-quantization in open quantum systems
Fractional winding numbers in open quantum systems recover integer quantization over multiple momentum periods.
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Superconducting properties of the three-dimensional Hofstadter-Hubbard model below the critical flux for Weyl points
In the 3D Hofstadter-Hubbard model, superconductivity occurs for arbitrarily weak attraction below the critical flux for Weyl points with BCS-like gap scaling, but requires finite interaction strength above it.
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Hopf symmetry protected topological phases in the vicinity of spin orders
Hopf terms govern phases in 2D metals near fluctuating magnetic and spin loop-current orders, realizing an SU(2)-protected topological phase with gapped bulk, chiral edges, and quantized spin-Hall conductance.
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Non-perturbative switching rates in bistable open quantum systems: from driven Kerr oscillators to dissipative cat qubits
Path-integral derivation of non-perturbative switching rates for bistable open quantum systems obeying hidden time-reversal symmetry, with direct application to bit-flip rates in dissipative cat qubits.
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Extended phase-space symplectic integration for electron dynamics
Authors extend symplectic split-operator integration via phase-space enlargement to classical plasma electron dynamics and to infinite-dimensional TDDFT, and supply a cheap accuracy metric.