Journal
PHYSICAL REVIEW LETTERS
Volume 122, Issue 18, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.122.186804
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Funding
- European Research Council under the European Unions Programme for Research and Innovation (Horizon 2020)/ERC [639039]
- LabEx PALM [ANR-10-LABX-0039-PALM]
- ANR Contract ANPhoTeQ
- ANR-DFG Grant JosePhSCharLi
- ERC through the NSECPROBE grant
- IQST
- German Science Foundation (DFG) [AN336/11-1]
- Carl-Zeiss-Stiftung
- ANR Contract GEARED
- European Research Council (ERC) [639039] Funding Source: European Research Council (ERC)
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We show experimentally that a dc biased Josephson junction in series with a high-enough-impedance microwave resonator emits antibunched photons. Our resonator is made of a simple microfabricated spiral coil that resonates at 4.4 GHz and reaches a 1.97 k Omega characteristic impedance. The second order correlation function of the power leaking out of the resonator drops down to 0.3 at zero delay, which demonstrates the antibunching of the photons emitted by the circuit at a rate of 6 x 10(7) photons per second. Results are found in quantitative agreement with our theoretical predictions. This simple scheme could offer an efficient and bright single-photon source in the microwave domain.
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