Any temperature-dependent unitary driving on a thermalized quantum probe universally boosts its quantum Fisher information for thermometry above the static equilibrium value via a positive kernel of information currents.
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Under stability, temperedness, and exponential cluster decomposition of the pair potential, the coarse-grained entropy of the N-body system satisfies S_CG = sum S_i plus an exponentially suppressed correction, recovering additivity in the thermodynamic limit.
A new bound based on state-Hamiltonian correlations gives the exact maximum efficiency for multi-bath thermal engines and is achievable beyond the quasistatic regime in a quantum dot model.
Temperature requires continuous photon energy input averaging 2.701 times the characteristic energy E_c to offset radiative losses and sustain the Planck distribution.
citing papers explorer
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Shake before use: universal enhancement of quantum thermometry by unitary driving
Any temperature-dependent unitary driving on a thermalized quantum probe universally boosts its quantum Fisher information for thermometry above the static equilibrium value via a positive kernel of information currents.
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Entropy additivity from exponential decay of correlations: a coarse-grained operator approach
Under stability, temperedness, and exponential cluster decomposition of the pair potential, the coarse-grained entropy of the N-body system satisfies S_CG = sum S_i plus an exponentially suppressed correction, recovering additivity in the thermodynamic limit.
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An Information-Theoretic Bound on Thermodynamic Efficiency and the Generalized Carnot's Theorem
A new bound based on state-Hamiltonian correlations gives the exact maximum efficiency for multi-bath thermal engines and is achievable beyond the quasistatic regime in a quantum dot model.
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Temperature as a Dynamically Maintained Steady State: Photonic Mechanisms, Maintenance Cost, and the Limits of the Infinite-Reservoir Idealization
Temperature requires continuous photon energy input averaging 2.701 times the characteristic energy E_c to offset radiative losses and sustain the Planck distribution.