Critical Fluorescence of a Transmon at the Schmid Transition
Abstract
Here, we investigate inelastic microwave photon scattering by a transmon qubit embedded in a high-impedance circuit. The transmon undergoes a charge-localization (Schmid) transition upon the impedance reaching the critical value. Due to the unique transmon level structure, the fluorescence spectrum carries a signature of the transition point. At higher circuit impedance, quasielastic photon scattering may account for the main part of the inelastic scattering cross-section; we find its dependence on the qubit and circuit parameters.
- Authors:
-
- Univ. Grenoble Alpes (France)
- Yale Univ., New Haven, CT (United States)
- Publication Date:
- Research Org.:
- Yale Univ., New Haven, CT (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); ANR; ARO
- OSTI Identifier:
- 1755122
- Grant/Contract Number:
- FG02-08ER46482; ANR-16-CE300019; W911NF-18-1-0212
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 125; Journal Issue: 26; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Josephson effect; Phase slips; Quantum phase transitions; Quantum simulation; Scattering amplitudes; Superconducting quantum optics; Superconducting qubits; Bosonization
Citation Formats
Houzet, M., and Glazman, L. I. Critical Fluorescence of a Transmon at the Schmid Transition. United States: N. p., 2020.
Web. doi:10.1103/physrevlett.125.267701.
Houzet, M., & Glazman, L. I. Critical Fluorescence of a Transmon at the Schmid Transition. United States. https://doi.org/10.1103/physrevlett.125.267701
Houzet, M., and Glazman, L. I. Wed .
"Critical Fluorescence of a Transmon at the Schmid Transition". United States. https://doi.org/10.1103/physrevlett.125.267701. https://www.osti.gov/servlets/purl/1755122.
@article{osti_1755122,
title = {Critical Fluorescence of a Transmon at the Schmid Transition},
author = {Houzet, M. and Glazman, L. I.},
abstractNote = {Here, we investigate inelastic microwave photon scattering by a transmon qubit embedded in a high-impedance circuit. The transmon undergoes a charge-localization (Schmid) transition upon the impedance reaching the critical value. Due to the unique transmon level structure, the fluorescence spectrum carries a signature of the transition point. At higher circuit impedance, quasielastic photon scattering may account for the main part of the inelastic scattering cross-section; we find its dependence on the qubit and circuit parameters.},
doi = {10.1103/physrevlett.125.267701},
journal = {Physical Review Letters},
number = 26,
volume = 125,
place = {United States},
year = {Wed Dec 30 00:00:00 EST 2020},
month = {Wed Dec 30 00:00:00 EST 2020}
}
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