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The second laws of quantum thermodynamics

Open access
Brandão, Fernando, Horodecki, Michał, Ng, Nelly, Oppenheim, Jonathan, Wehner, Stephanie·2015·Proceedings of the National Academy of Sciences

Abstract

Significance: In ordinary thermodynamics, transitions are governed by a single quantity–the free energy. Its monotonicity is a formulation of the second law. Here, we find that the second law for microscopic or highly correlated systems takes on a very different form than it does at the macroscopic scale, imposing not just one constraint on state transformations, but many. We find a family of quantum free energies which generalize the standard free energy, and can never increase. The ordinary second law corresponds to the nonincreasing of one of these free energies, with the remainder imposing additional constraints on thermodynamic transitions. In the thermodynamic limit, these additional second laws become equivalent to the standard one. We also prove a strengthened version of the zeroth law of thermodynamics, allowing a definition of temperature.

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Metadata

Authors
Brandão, F., Horodecki, M., Ng, N., Oppenheim, J., & Wehner, S.
Venue
Proceedings of the National Academy of Sciences
Published
2015-02-09
Volume
112
Issue
11
Pages
3275-3279
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2006991014
Cited by
718
References
5
FWCI
51.96
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: The second laws of quantum thermodynamics. https://app.cochat.ai/papers/10.1073/pnas.1411728112
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Brandão, F., Horodecki, M., Ng, N., Oppenheim, J., & Wehner, S. (2015). The second laws of quantum thermodynamics. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1411728112

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.