D
David Jennings
Researcher at Imperial College London
Publications - 84
Citations - 3892
David Jennings is an academic researcher from Imperial College London. The author has contributed to research in topics: Quantum & Quantum state. The author has an hindex of 26, co-authored 78 publications receiving 3352 citations. Previous affiliations of David Jennings include University of Sydney & University of Oxford.
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Description of quantum coherence in thermodynamic processes requires constraints beyond free energy.
TL;DR: It is shown that free energy relations cannot properly describe quantum coherence in thermodynamic processes, and it is found that coherence transformations are always irreversible.
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Quantum majorization and a complete set of entropic conditions for quantum thermodynamics.
Gilad Gour,David Jennings,David Jennings,Francesco Buscemi,Runyao Duan,Runyao Duan,Iman Marvian +6 more
TL;DR: A quantum-mechanical generalization of majorization is used to derive a complete set of necessary and sufficient conditions for thermal transformations of quantum states, based on natural physical principles, namely, energy conservation, the existence of equilibrium states, and the requirement that quantum coherence be accounted for thermodynamics.
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Quantum coherence, time-translation symmetry and thermodynamics
TL;DR: In this paper, the authors show how the processing of quantum coherence is constrained by the laws of thermodynamics, and how these laws can be used to constrain the quantum process.
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The extraction of work from quantum coherence
TL;DR: It is shown that for any thermal machine with finite resources not all the coherence of a state can be extracted as work, however, even bounded thermal machines can be reused infinitely many times in the process of work extraction from coherence.
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Quantum Steering Ellipsoids
TL;DR: It is shown that entanglement can be analyzed in terms of three geometric features of the ellipsoid and proved that a state is separable if and only if it obeys a "nested tetrahedron" condition.