Work extraction from coupled qubits in equilibrium and nonequilibrium thermal reservoirs
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DOI: 10.1038/s41598-025-17601-1
Abstract: This study investigates the thermodynamic behavior of a two-qubit quantum system, where each qubit is coupled to an independent thermal reservoir, either bosonic or fermionic. Using a master equation approach, we analyze both steady-state and… read more here.
Keywords: work extraction; equilibrium; extraction coupled; reservoir ... See more keywords
Quantum Thermodynamic Advantage in Work Extraction from Steerable Quantum Correlations.
Sign Up to like & getrecommendations! Published in 2025 at "Physical review letters"
DOI: 10.1103/9qcc-7lq5
Abstract: Inspired by the primary goal of quantum thermodynamics-to characterize quantum signatures and leverage their benefits in thermodynamic scenarios-we design a work extraction task within a bipartite framework that exhibits a quantum thermodynamic advantage. The steerability… read more here.
Keywords: advantage; work extraction; work; quantum thermodynamic ... See more keywords
Role of quantum correlations in daemonic expected utility
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review A"
DOI: 10.1103/physreva.109.052221
Abstract: Fluctuations can challenge the possibility of improving work extraction from quantum correlations. This uncertainty in the work extraction process can be addressed resorting to the expected utility hypothesis which can provide an optimal method for… read more here.
Keywords: work extraction; expected utility; work; role quantum ... See more keywords
Work extraction and fully entangled fraction
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DOI: 10.1103/physreva.96.012107
Abstract: For a bipartite state with equal local dimension d, we prove that one can obtain work gain under Landauer's erasure process on one party in identically and independently distributed (iid) limit when the corresponding fully… read more here.
Keywords: work; work extraction; fully entangled; entangled fraction ... See more keywords
Work Extraction from Unknown Quantum Sources
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review Letters"
DOI: 10.1103/physrevlett.130.210401
Abstract: Energy extraction is a central task in thermodynamics. In quantum physics, ergotropy measures the amount of work extractable under cyclic Hamiltonian control. As its full extraction requires perfect knowledge of the initial state, however, it… read more here.
Keywords: quantum; extraction; work extraction; quantum sources ... See more keywords
Probabilistic Work Extraction on a Classical Oscillator Beyond the Second Law.
Sign Up to like & getrecommendations! Published in 2024 at "Physical review letters"
DOI: 10.1103/physrevlett.133.057101
Abstract: We demonstrate experimentally that, applying optimal protocols that drive the system between two equilibrium states characterized by a free energy difference ΔF, we can maximize the probability of performing the transition between the two states… read more here.
Keywords: work extraction; oscillator; probabilistic work; extraction classical ... See more keywords