The diagonal metric response of quantum relative entropy yields a susceptibility that diverges at quantum critical points in spin chains, with square-log divergence in the TFIM and power-law in a non-integrable three-spin Ising chain.
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In the nonlinear Jaynes-Cummings model with Kerr extension and Lindblad dissipation, robustness of geometric phases and entanglement is governed by alignment between coherent and dissipative trajectories, establishing a geometric criterion for decoherence resilience.
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Metric response of relative entropy: A universal indicator of quantum criticality
The diagonal metric response of quantum relative entropy yields a susceptibility that diverges at quantum critical points in spin chains, with square-log divergence in the TFIM and power-law in a non-integrable three-spin Ising chain.
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Dynamically Enabled Robustness of Geometric Phases and Entanglement in the Nonlinear Jaynes-Cummings Model
In the nonlinear Jaynes-Cummings model with Kerr extension and Lindblad dissipation, robustness of geometric phases and entanglement is governed by alignment between coherent and dissipative trajectories, establishing a geometric criterion for decoherence resilience.