Coupling a single electron on superfluid helium to a superconducting resonator
Abstract
Abstract Electrons on helium form a unique two-dimensional system on the interface of liquid helium and vacuum. A small number of trapped electrons on helium exhibits strong interactions in the absence of disorder, and can be used as a qubit. Trapped electrons typically have orbital frequencies in the microwave regime and can therefore be integrated with circuit quantum electrodynamics (cQED), which studies light–matter interactions using microwave photons. Here, we experimentally realize a cQED platform with the orbitals of single electrons on helium. We deterministically trap one to four electrons in a dot integrated with a microwave resonator, allowing us to study the electrons’ response to microwaves. Furthermore, we find a single-electron-photon coupling strength of $$$$g/2\pi =4.8\pm 0.3$$$$ MHz, greatly exceeding the resonator linewidth $$$$\kappa /2\pi =0.5$$$$ MHz. These results pave the way towards microwave studies of Wigner molecules and coherent control of the orbital and spin state of a single electron on helium.
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1619595
- Alternate Identifier(s):
- OSTI ID: 1591833
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Published Article
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Name: Nature Communications Journal Volume: 10 Journal Issue: 1; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United Kingdom
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; quantum fluids and solids; quantum physics; superconducting devices
Citation Formats
Koolstra, Gerwin, Yang, Ge, and Schuster, David I. Coupling a single electron on superfluid helium to a superconducting resonator. United Kingdom: N. p., 2019.
Web. doi:10.1038/s41467-019-13335-7.
Koolstra, Gerwin, Yang, Ge, & Schuster, David I. Coupling a single electron on superfluid helium to a superconducting resonator. United Kingdom. https://doi.org/10.1038/s41467-019-13335-7
Koolstra, Gerwin, Yang, Ge, and Schuster, David I. Fri .
"Coupling a single electron on superfluid helium to a superconducting resonator". United Kingdom. https://doi.org/10.1038/s41467-019-13335-7.
@article{osti_1619595,
title = {Coupling a single electron on superfluid helium to a superconducting resonator},
author = {Koolstra, Gerwin and Yang, Ge and Schuster, David I.},
abstractNote = {Abstract Electrons on helium form a unique two-dimensional system on the interface of liquid helium and vacuum. A small number of trapped electrons on helium exhibits strong interactions in the absence of disorder, and can be used as a qubit. Trapped electrons typically have orbital frequencies in the microwave regime and can therefore be integrated with circuit quantum electrodynamics (cQED), which studies light–matter interactions using microwave photons. Here, we experimentally realize a cQED platform with the orbitals of single electrons on helium. We deterministically trap one to four electrons in a dot integrated with a microwave resonator, allowing us to study the electrons’ response to microwaves. Furthermore, we find a single-electron-photon coupling strength of $$g/2\pi =4.8\pm 0.3$$ g ∕ 2 π = 4.8 ± 0.3 MHz, greatly exceeding the resonator linewidth $$\kappa /2\pi =0.5$$ κ ∕ 2 π = 0.5 MHz. These results pave the way towards microwave studies of Wigner molecules and coherent control of the orbital and spin state of a single electron on helium.},
doi = {10.1038/s41467-019-13335-7},
journal = {Nature Communications},
number = 1,
volume = 10,
place = {United Kingdom},
year = {2019},
month = {11}
}
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https://doi.org/10.1038/s41467-019-13335-7
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