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Antibunched Photons from Inelastic Cooper-Pair Tunneling

Abstract : 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.
Keywords : Josephson-Junctions
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Contributor : Jérôme Planès <>
Submitted on : Wednesday, March 14, 2018 - 11:54:22 AM
Last modification on : Tuesday, September 1, 2020 - 3:24:04 PM

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Juha Leppakangas, Mikael Fogelstrom, Alexander Grimm, Max Hofheinz, Michael Marthaler, et al.. Antibunched Photons from Inelastic Cooper-Pair Tunneling. Physical Review Letters, American Physical Society, 2015, 115 (2), pp.027004. ⟨10.1103/PhysRevLett.115.027004⟩. ⟨cea-01731472⟩



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