Antibunched Photons from Inelastic Cooper-Pair Tunneling
Journal article, 2015

We demonstrate theoretically that charge transport across a Josephson junction, voltage-biased through a resistive environment, produces antibunched photons. We develop a continuous-mode description of the emitted radiation field in a semi-infinite transmission line terminated by the Josephson junction. Within a perturbative treatment in powers of the tunneling coupling across the Josephson junction, we capture effects originating in charging dynamics of consecutively tunneling Cooper pairs. We find that within a feasible experimental setup the Coulomb blockade provided by high zero-frequency impedance can be used to create antibunched photons at a very high rate and in a very versatile frequency window ranging from a few GHz to a THz.

Author

Juha Leppäkangas

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Mikael Fogelström

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

A. Grimm

M. Hofheinz

M. Marthaler

Göran Johansson

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 115 2

Quantum Propagating Microwaves in Strongly Coupled Environments (PROMISCE)

European Commission (FP7), 2012-04-01 -- 2015-03-31.

Subject Categories

Physical Sciences

DOI

10.1103/PhysRevLett.115.027004

More information

Created

10/8/2017