Quantum Trajectory Analysis of Single Microwave Photon Detection by Nanocalorimetry

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Author
Date
2020-05-01
Department
Centre of Excellence in Quantum Technology, QTF
Department of Applied Physics
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Mcode
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Language
en
Pages
5
Series
Physical Review Letters, Volume 124, issue 17
Abstract
We apply quantum trajectory techniques to analyze a realistic setup of a superconducting qubit coupled to a heat bath formed by a resistor, a system that yields explicit expressions of the relevant transition rates to be used in the analysis. We discuss the main characteristics of the jump trajectories and relate them to the expected outcomes ("clicks") of a fluorescence measurement using the resistor as a nanocalorimeter. As the main practical outcome, we present a model that predicts the time-domain response of a realistic calorimeter subject to single microwave photons, incorporating the intrinsic noise due to the fundamental thermal fluctuations of the absorber and finite bandwidth of a thermometer.
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| openaire: EC/H2020/742559/EU//SQH | openaire: EC/H2020/766025/EU//QuESTech
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DOI
10.1103/PhysRevLett.124.170601
Citation
Karimi , B & Pekola , J P 2020 , ' Quantum Trajectory Analysis of Single Microwave Photon Detection by Nanocalorimetry ' , Physical Review Letters , vol. 124 , no. 17 , 170601 . https://doi.org/10.1103/PhysRevLett.124.170601
Permanent link to this item
https://urn.fi/URN:NBN:fi:aalto-202006013499
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[article-cris] Perustieteiden korkeakoulu / SCI