Work

Assisted Work Distillation

Year: 2019

Type: article

Abstract: We study the process of assisted work distillation. This scenario arises when two parties share a bipartite quantum state ρ_{AB} 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 ρ_{AB} 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.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.122.130601

Authors: Benjamin Morris, Ludovico Lami, Gerardo Adesso

Institution: University of Nottingham

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: bronze

Funders: Engineering and Physical Sciences Research Council, H2020 European Research Council

Awards: G1215681457, Fundamentals of quantum thermodynamics, Genuine Quantumness in Cooperative Phenomena, DTP 2016-2017 University of Nottingham