Two-tone spectroscopy of high-frequency quantum circuits with a Josephson emitter
We perform two-tone spectroscopy on quantum circuits, where high-frequency radiation is generated by a voltage-biased superconductor-normal-superconductor Josephson junction and detection is carried out by an ancillary microwave resonator. We implement this protocol on two different systems, a transmon qubit and a $\ensuremath{\lambda}/4$ resonator. We demonstrate that this two-tone Josephson spectroscopy operates well into the millimeter-wave band, reaching frequencies larger than 80 GHz, and is well suited for probing highly coherent quantum systems.
Authors
- Jean-Damien Pillet (ORCID: https://orcid.org/0000-0002-2766-8049)
- A. Peugeot (ORCID: https://orcid.org/0000-0002-5034-7315)
- J. Griesmar (ORCID: https://orcid.org/0000-0002-0586-6757)
- Emmanuel Flurin (ORCID: https://orcid.org/0000-0002-1367-8967)
- E. Arrighi (ORCID: https://orcid.org/0000-0001-7648-3908)
- Landry Bretheau
- M Villiers
- Léo Balembois (ORCID: https://orcid.org/0009-0008-0666-7312)
- S. Annabi (ORCID: https://orcid.org/0009-0000-0614-8477)
- H. Riechert (ORCID: https://orcid.org/0000-0002-1111-3962)
Institutions
- École Polytechnique (FR)
- Université Paris-Saclay (FR)
- École Normale Supérieure - PSL (FR)
- Sorbonne Université (FR)
- École Normale Supérieure (BI)
- Institut Polytechnique de Paris (FR)
- Laboratoire Médiations (FR)
Publication Details
- Journal
- Physical Review Applied
- Published
- 2024-12-06
- DOI
- https://doi.org/10.1103/physrevapplied.22.064027
- Citations
- 5
- Primary Topic
- Quantum Information and Cryptography
- Type
- article
- Field-Weighted Citation Impact
- 1.74
Funders
- European Commission
- Agence Nationale de la Recherche