Vaccaro, J., Croke, S. and Barnett, S. (2018) Is coherence catalytic? Journal of Physics A: Mathematical and Theoretical, 51(41), 414008. (doi: 10.1088/1751-8121/aac112)
|
Text
161699.pdf - Accepted Version 478kB |
Abstract
Quantum coherence, the ability to control the phases in superposition states is a resource, and it is of crucial importance, therefore, to understand how it is consumed in use. It has been suggested that catalytic coherence is possible, that is repeated use of the coherence without degradation or reduction in performance. The claim has particular relevance for quantum thermodynamics because, were it true, it would allow free energy that is locked in coherence to be extracted indefinitely. We address this issue directly with a careful analysis of the proposal by Åberg (2014 Phys. Rev. Lett. 113 150402). We find that coherence cannot be used catalytically, or even repeatedly without limit.
| Item Type: | Articles |
|---|---|
| Additional Information: | JAV thanks the Australian Research Council (LP140100797) and the Lockheed Martin Corporation for financial support, and acknowledges discussions with S Bedkihal. SMB thanks the Royal Society for support (RP150122). |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Barnett, Professor Stephen and Croke, Dr Sarah |
| Authors: | Vaccaro, J., Croke, S., and Barnett, S. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Journal of Physics A: Mathematical and Theoretical |
| Publisher: | IOP Publishing |
| ISSN: | 1751-8113 |
| ISSN (Online): | 1751-8121 |
| First Published: | First published in Journal of Physics A: Mathematical and Theoretical 51(41):414008 |
| Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
University Staff: Request a correction | Enlighten Editors: Update this record
Funder and Project Information
Funder and Project Information