Antibunched Photons Emitted by a dc-Biased Josephson Junction

被引：41

作者：

Rolland, C. ^{[1
]}

Peugeot, A. ^{[1
]}

Dambach, S. ^{[2
,3
]}

Westig, M. ^{[1
]}

Kubala, B. ^{[2
,3
]}

Mukharsky, Y. ^{[1
]}

Altimiras, C. ^{[1
]}

le Sueur, H. ^{[1
]}

Joyez, R. ^{[1
]}

Vion, D. ^{[1
]}

Roche, P. ^{[1
]}

Esteve, D. ^{[1
]}

Ankerhold, J. ^{[2
,3
]}

Portier, F. ^{[1
]}

机构：

[1] Univ Paris Saclay, CEA, CNRS UMR 3680, DSM IRAMIS SPEC, F-91190 Gif Sur Yvette, France

[2] Univ Ulm, Inst Complex Quantum Syst, D-89069 Ulm, Germany

[3] Univ Ulm, IQST, D-89069 Ulm, Germany

来源：

PHYSICAL REVIEW LETTERS | 2019年 / 122卷 / 18期

基金：

欧洲研究理事会;

关键词：

58;

D O I：

10.1103/PhysRevLett.122.186804

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：6

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