Demonstrates 't Hooft anomaly under Z2 gauging of O(3) NLSM for Θ = π mod 2π, implying the RP2 sigma model does not exist and relating to spin-chain crystal momenta.
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A review of equilibrium and dynamic scaling laws at quantum phase transitions, including quenches and dissipative effects treated as perturbations to critical regimes.
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Nonlinear sigma models, antiperiodic boundary conditions, spin chains, and 't Hooft anomalies
Demonstrates 't Hooft anomaly under Z2 gauging of O(3) NLSM for Θ = π mod 2π, implying the RP2 sigma model does not exist and relating to spin-chain crystal momenta.
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Coherent and dissipative dynamics at quantum phase transitions
A review of equilibrium and dynamic scaling laws at quantum phase transitions, including quenches and dissipative effects treated as perturbations to critical regimes.