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Photon Emission from a Cavity-Coupled Double Quantum Dot

Author(s): Liu, Y-Y; Petersson, KD; Stehlik, J; Taylor, JM; Petta, Jason R

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Abstract: We study a voltage biased InAs double quantum dot (DQD) that is coupled to a superconducting transmission line resonator. Inelastic tunneling in the DQD is mediated by electron phonon coupling and coupling to the cavity mode. We show that electronic transport through the DQD leads to photon emission from the cavity at a rate of 10 MHz. With a small cavity drive field, we observe a gain of up to 15 in the cavity transmission. Our results are analyzed in the context of existing theoretical models and suggest that it may be necessary to account for inelastic tunneling processes that proceed via simultaneous emission of a phonon and a photon.
Publication Date: 18-Jul-2014
Electronic Publication Date: 16-Jul-2014
Citation: Liu, Y-Y, Petersson, KD, Stehlik, J, Taylor, JM, Petta, JR. (2014). Photon Emission from a Cavity-Coupled Double Quantum Dot. PHYSICAL REVIEW LETTERS, 113 (10.1103/PhysRevLett.113.036801
DOI: doi:10.1103/PhysRevLett.113.036801
ISSN: 0031-9007
EISSN: 1079-7114
Type of Material: Journal Article
Journal/Proceeding Title: PHYSICAL REVIEW LETTERS
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.

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