Exact dynamical fluctuation-response relations are derived that split the finite-time covariance of time-integrated observables into initial variability and an integral of response kernels for nonautonomous Markov jump processes.
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Path extrema of the entropy-production martingale define an upper envelope U_ext for mean entropy production, with the actual mean equal to U_ext minus allocation gap A and curvature gap C.
An exact identity decomposes the power spectrum of general observables into a quadratic form of local responses at the same frequency for nonequilibrium steady states.
Topology clusters states around the steady-state in stochastic systems but moves them away from zero-energy in quantum systems, while non-reciprocity does the reverse, and a unique topologically emerging state appears only in stochastic models.
A quantum clock blueprint in dissipative spin chains achieves the optimal scaling at the precision-resolution bound with a robust repeated-operation protocol.
Classical thermodynamic uncertainty bounds on efficiency persist in quantum thermal machines with coherent transport, but cross-correlations optimize joint precision of currents near linear response.
citing papers explorer
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Dynamical Fluctuation-Response Relations
Exact dynamical fluctuation-response relations are derived that split the finite-time covariance of time-integrated observables into initial variability and an integral of response kernels for nonautonomous Markov jump processes.
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Path-Extrema Upper Bounds on Mean Entropy Production
Path extrema of the entropy-production martingale define an upper envelope U_ext for mean entropy production, with the actual mean equal to U_ext minus allocation gap A and curvature gap C.
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Nonequilibrium Fluctuation-Response Theory in the Frequency Domain
An exact identity decomposes the power spectrum of general observables into a quadratic form of local responses at the same frequency for nonequilibrium steady states.
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The unique control features of topological stochastic and quantum systems
Topology clusters states around the steady-state in stochastic systems but moves them away from zero-energy in quantum systems, while non-reciprocity does the reverse, and a unique topologically emerging state appears only in stochastic models.
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Approaching the Limit of Quantum Clock Precision
A quantum clock blueprint in dissipative spin chains achieves the optimal scaling at the precision-resolution bound with a robust repeated-operation protocol.
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Quantum Coherence Reshapes Thermodynamic Bounds for Thermal Machines
Classical thermodynamic uncertainty bounds on efficiency persist in quantum thermal machines with coherent transport, but cross-correlations optimize joint precision of currents near linear response.