Selective control of conductance modes in multi-terminal Josephson junctions
Abstract
The Andreev bound state spectra of multi-terminal Josephson junctions form an artificial band structure, which is predicted to host tunable topological phases under certain conditions. However, the number of conductance modes between the terminals of a multi-terminal Josephson junction must be few in order for this spectrum to be experimentally accessible. In this work, we employ a quantum point contact geometry in three-terminal Josephson devices to demonstrate independent control of conductance modes between each pair of terminals and access to the single-mode regime coexistent with the presence of superconducting coupling. These results establish a full platform on which to realize tunable Andreev bound state spectra in multi-terminal Josephson junctions.
- Authors:
-
[1];
[2];
[3];
[3];
[1]
- Univ. of Minnesota, Minneapolis, MN (United States)
- Univ. of California, Santa Barbara, CA (United States); Stanford Univ., CA (United States)
- Univ. of California, Santa Barbara, CA (United States)
- Publication Date:
- Research Org.:
- Univ. of Minnesota, Minneapolis, MN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); National Science Foundation (NSF)
- OSTI Identifier:
- 1904351
- Grant/Contract Number:
- SC0019274; DMR-1554609; ECCS-1542202
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 13; Journal Issue: 1; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; superconducting devices; superconducting properties and materials
Citation Formats
Graziano, Gino V., Gupta, Mohit, Pendharkar, Mihir, Dong, Jason T., Dempsey, Connor P., Palmstrøm, Chris, and Pribiag, Vlad S. Selective control of conductance modes in multi-terminal Josephson junctions. United States: N. p., 2022.
Web. doi:10.1038/s41467-022-33682-2.
Graziano, Gino V., Gupta, Mohit, Pendharkar, Mihir, Dong, Jason T., Dempsey, Connor P., Palmstrøm, Chris, & Pribiag, Vlad S. Selective control of conductance modes in multi-terminal Josephson junctions. United States. https://doi.org/10.1038/s41467-022-33682-2
Graziano, Gino V., Gupta, Mohit, Pendharkar, Mihir, Dong, Jason T., Dempsey, Connor P., Palmstrøm, Chris, and Pribiag, Vlad S. Sat .
"Selective control of conductance modes in multi-terminal Josephson junctions". United States. https://doi.org/10.1038/s41467-022-33682-2. https://www.osti.gov/servlets/purl/1904351.
@article{osti_1904351,
title = {Selective control of conductance modes in multi-terminal Josephson junctions},
author = {Graziano, Gino V. and Gupta, Mohit and Pendharkar, Mihir and Dong, Jason T. and Dempsey, Connor P. and Palmstrøm, Chris and Pribiag, Vlad S.},
abstractNote = {The Andreev bound state spectra of multi-terminal Josephson junctions form an artificial band structure, which is predicted to host tunable topological phases under certain conditions. However, the number of conductance modes between the terminals of a multi-terminal Josephson junction must be few in order for this spectrum to be experimentally accessible. In this work, we employ a quantum point contact geometry in three-terminal Josephson devices to demonstrate independent control of conductance modes between each pair of terminals and access to the single-mode regime coexistent with the presence of superconducting coupling. These results establish a full platform on which to realize tunable Andreev bound state spectra in multi-terminal Josephson junctions.},
doi = {10.1038/s41467-022-33682-2},
journal = {Nature Communications},
number = 1,
volume = 13,
place = {United States},
year = {Sat Oct 08 00:00:00 EDT 2022},
month = {Sat Oct 08 00:00:00 EDT 2022}
}
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