Realization of a single-Cooper-pair Josephson laser

Chen, Fei; Li, Juliang; Armour, A.D.; Brahimi, E.; Stettenheim, Joel; Sirois, A.J.; Simmonds, R.W.; Blencowe, M.P.; Rimberg, A.J.

Abstract

We have embedded a voltage-biased Cooper-pair transistor (CPT) in a high-Q superconducting microwave cavity. When the energy given to a tunneling Cooper pair by the voltage bias is equal to a multiple of the cavity photon frequency, the cavity is pumped to a strongly nonequilibrium state. The cavity photons act back on the CPT, allowing us to enter a regime of strongly correlated electronic-photonic transport. We directly observe the effects of photonic backaction on Cooper-pair transport, and see clear evidence for single-emitter lasing in the form of emission dominated by stimulated transport processes.

Citation

Chen, F., Li, J., Armour, A., Brahimi, E., Stettenheim, J., Sirois, A., …Rimberg, A. (2014). Realization of a single-Cooper-pair Josephson laser. Physical Review B, 90, Article 020506. https://doi.org/10.1103/PhysRevB.90.020506

• Journal Article Type: Article
• Acceptance Date: Jun 26, 2014
• Publication Date: Jul 22, 2014
• Deposit Date: Jul 13, 2016
• Publicly Available Date: Jul 13, 2016
• Journal: Physical Review B
• Print ISSN: 2469-9950
• Electronic ISSN: 2469-9969
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 90
• Article Number: 020506
• DOI: https://doi.org/10.1103/PhysRevB.90.020506
• Public URL: https://nottingham-repository.worktribe.com/output/732068
• Publisher URL: http://journals.aps.org/prb/abstract/10.1103/PhysRevB.90.020506