Realization of a single-Cooper-pair Josephson laser

被引：56

作者：

Chen, Fei ^{[1
]}

Li, Juliang ^{[1
]}

Armour, A. D. ^{[2
]}

Brahimi, E. ^{[1
]}

Stettenheim, Joel ^{[1
]}

Sirois, A. J. ^{[3
]}

Simmonds, R. W. ^{[4
]}

Blencowe, M. P. ^{[1
]}

Rimberg, A. J. ^{[1
]}

机构：

[1] Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA

[2] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

[3] Univ Colorado, Boulder, CO 80309 USA

[4] NIST, Boulder, CO 80305 USA

来源：

PHYSICAL REVIEW B | 2014年 / 90卷 / 02期

基金：

美国国家科学基金会; 英国工程与自然科学研究理事会;

关键词：

COULOMB-BLOCKADE; PHOTON; CURRENTS; STATES; CHAOS;

D O I：

10.1103/PhysRevB.90.020506

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页数：6

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