Dynamic Bayesian network reconstruction yields backaction-free fluctuation diagnostics for an engineered population-inverted qubit Otto engine, revealing enhanced work and power with reduced relative noise in full thermalization and structured operating sectors for finite-time cycles.
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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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Coherence-Preserving Fluctuation Diagnostics for an Engineered Population-Inverted Qubit Otto Engine
Dynamic Bayesian network reconstruction yields backaction-free fluctuation diagnostics for an engineered population-inverted qubit Otto engine, revealing enhanced work and power with reduced relative noise in full thermalization and structured operating sectors for finite-time cycles.
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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.