Duffus, S. N A, Bjergstrom, K. N., Dwyer, V. M. et al. (6 more authors) (2016) Some implications of superconducting quantum interference to the application of master equations in engineering quantum technologies. Physical Review B. 064518. pp. 1-10. ISSN 2469-9969
Abstract
In this paper we consider the modeling and simulation of open quantum systems from a device engineering perspective. We derive master equations at different levels of approximation for a superconducting quantum interference device (SQUID) ring coupled to an ohmic bath. We demonstrate that the master equations we consider produce decoherences that are qualitatively and quantitatively dependent on both the level of approximation and the ring's external flux bias. We discuss the issues raised when seeking to obtain Lindbladian dissipation and show, in this case, that the external flux (which may be considered to be a control variable in some applications) is not confined to the Hamiltonian, as often assumed in quantum control, but also appears in the Lindblad terms.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | ©2016 American Physical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 23 Nov 2016 15:43 |
Last Modified: | 16 Oct 2024 13:25 |
Published Version: | https://doi.org/10.1103/PhysRevB.94.064518 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevB.94.064518 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:108373 |
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