Please use this identifier to cite or link to this item:
Title: Correlation in catalysts enables arbitrary manipulation of quantum coherence
Authors: Takagi, Ryuji
Shiraishi, Naoto
Keywords: Science::Physics
Issue Date: 2022
Source: Takagi, R. & Shiraishi, N. (2022). Correlation in catalysts enables arbitrary manipulation of quantum coherence. Physical Review Letters, 128(24), 240501-1-240501-7.
Project: NRF-NRFF2016-02 
Journal: Physical Review Letters 
Abstract: Quantum resource manipulation may include an ancillary state called a catalyst, which aids the transformation while restoring its original form at the end, and characterizing the enhancement enabled by catalysts is essential to reveal the ultimate manipulability of the precious resource quantity of interest. Here, we show that allowing correlation among multiple catalysts can offer arbitrary power in the manipulation of quantum coherence. We prove that any state transformation can be accomplished with an arbitrarily small error by covariant operations with catalysts that may create a correlation within them while keeping their marginal states intact. This presents a new type of embezzlement-like phenomenon, in which the resource embezzlement is attributed to the correlation generated among multiple catalysts. We extend our analysis to general resource theories and provide conditions for feasible transformations assisted by catalysts that involve correlation, putting a severe restriction on other quantum resources for showing this anomalous enhancement, as well as characterizing achievable transformations in relation to their asymptotic state transformations. Our results provide not only a general overview of the power of correlation in catalysts but also a step toward the complete characterization of the resource transformability in quantum thermodynamics with correlated catalysts.
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.128.240501
Schools: School of Physical and Mathematical Sciences 
Research Centres: Nanyang Quantum Hub
Rights: © 2022 American Physical Society. All rights reserved. This paper was published in Physical Review Letters and is made available with permission of American Physical Society.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

Files in This Item:
File Description SizeFormat 
PhysRevLett.128.240501.pdf319.08 kBAdobe PDFThumbnail

Citations 20

Updated on Dec 4, 2023

Web of ScienceTM
Citations 50

Updated on Oct 26, 2023

Page view(s)

Updated on Dec 10, 2023

Download(s) 50

Updated on Dec 10, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.