Assisted work distillation

Morris, Benjamin; Lami, Ludovico; Adesso, Gerardo

Abstract

We study the process of assisted work distillation. This scenario arises when two parties share a bipartite quantum state ρAB and their task is to locally distill the optimal amount of work when one party is restricted to thermal operations, whereas the other can perform general quantum operations and they are allowed to communicate classically. We demonstrate that this question is intimately related to the distillation of classical and quantum correlations. In particular, we show that the advantage of one party performing global measurements over many copies of ρAB is related to the nonadditivity of the entanglement of formation. We also show that there may exist work bound in the quantum correlations of the state that is only extractable under the wider class of local Gibbs-preserving operations.

Citation

Morris, B., Lami, L., & Adesso, G. (2019). Assisted work distillation. Physical Review Letters, 122(13), Article 130601. https://doi.org/10.1103/physrevlett.122.130601

• Journal Article Type: Article
• Acceptance Date: Mar 5, 2019
• Online Publication Date: Apr 2, 2019
• Publication Date: Apr 2, 2019
• Deposit Date: Apr 29, 2019
• Publicly Available Date: Apr 29, 2019
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 122
• Issue: 13
• Article Number: 130601
• DOI: https://doi.org/10.1103/physrevlett.122.130601
• Keywords: Quantum Physics; Statistical Mechanics; Mathematical Physics
• Public URL: https://nottingham-repository.worktribe.com/output/1849276
• Publisher URL: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.130601