Bipartite charge fluctuations in 3D metals encode Fermi surface geometry and quantum metric via a logarithmic term expressible as surface integrals of curvature and quantum metric tensors.
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Large-scale numerics and nonlinear sigma model mapping demonstrate that monitored non-interacting 1D fermions in disordered or quasiperiodic potentials remain in the area-law phase for all monitoring and disorder strengths, with no MIPT.
A spin-1 Heisenberg chain with staggered long-range interactions hosts a nonconformal quantum critical point at α_c≈2.48 separating the gapped Haldane and gapless Néel phases.
GPU-enabled simulations at L=16384 (1D) and 160x160 (2D) confirm no MIPT in 1D but a finite-rate MIPT in 2D with ν≈1.3, partially disagreeing with NLSM predictions.
citing papers explorer
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Fermi Surface Geometry from Charge Fluctuations in Three-Dimensional Metals
Bipartite charge fluctuations in 3D metals encode Fermi surface geometry and quantum metric via a logarithmic term expressible as surface integrals of curvature and quantum metric tensors.
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No measurement induced phase transition in the entanglement dynamics of monitored non-interacting one-dimensional fermions in a disordered or quasiperiodic potential
Large-scale numerics and nonlinear sigma model mapping demonstrate that monitored non-interacting 1D fermions in disordered or quasiperiodic potentials remain in the area-law phase for all monitoring and disorder strengths, with no MIPT.
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Unconventional Quantum Criticality in Long-Range Spin-1 Chains: Insights from Entanglement Entropy and Bipartite Fluctuations
A spin-1 Heisenberg chain with staggered long-range interactions hosts a nonconformal quantum critical point at α_c≈2.48 separating the gapped Haldane and gapless Néel phases.
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Entanglement dynamics of monitored noninteracting fermions on graphics processing units
GPU-enabled simulations at L=16384 (1D) and 160x160 (2D) confirm no MIPT in 1D but a finite-rate MIPT in 2D with ν≈1.3, partially disagreeing with NLSM predictions.