Heat transport through a two-level system under continuous quantum measurement

We study the backaction of quantum measurements on heat transport through a two-level system by considering the continuous quantum measurement onto an eigenstate of the two-level system. For the nonselective measurement, the backaction appears as a dephasing effect on the two-level system. We formul...

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Bibliographic Details
Published in:arXiv.org 2022-11
Main Authors: Yamamoto, Tsuyoshi, Tokura, Yasuhiro, Kato, Takeo
Format: Article
Language:English
Subjects:
Cross correlation
Eigenvectors
Online Access:Get full text
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Summary:We study the backaction of quantum measurements on heat transport through a two-level system by considering the continuous quantum measurement onto an eigenstate of the two-level system. For the nonselective measurement, the backaction appears as a dephasing effect on the two-level system. We formulate the heat current under the selective measurement with a stochastic master equation and show that the cross-correlation between the measurement outcomes and the heat current contains information on the backaction. We expect that our findings can be verified by using a platform of superconducting circuits.
ISSN:2331-8422
DOI:10.48550/arxiv.2208.08755