Quantum Trajectory Analysis of Single Microwave Photon Detection by Nanocalorimetry

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2020-05-01
Major/Subject
Mcode
Degree programme
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.
Description
| openaire: EC/H2020/742559/EU//SQH | openaire: EC/H2020/766025/EU//QuESTech
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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