Manipulation of a Two-Photon Pump in Superconductor-Semiconductor Heterostructures

Paul Baireuther; Peter P. Orth; Ilya Vekhter; Jörg Schmalian

doi:10.1103/PhysRevLett.112.077003

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Manipulation of a Two-Photon Pump in Superconductor-Semiconductor Heterostructures

Paul Baireuther, Peter P. Orth, Ilya Vekhter, Jörg Schmalian

DOI 10.1103/PhysRevLett.112.077003 · Physical Review Letters

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Abstract

We investigate the photon statistics, entanglement, and squeezing of a p−n junction sandwiched between two superconducting leads and show that such an electrically driven photon pump generates correlated and entangled pairs of photons. In particular, we demonstrate that the squeezing of the fluctuations in the quadrature amplitudes of the emitted light can be manipulated by changing the relative phase of the order parameters of the superconductors. This reveals how macroscopic coherence of the superconducting state can be used to tailor the properties of a two-photon state.

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Formula	Reported Tc (K)	Pressure (GPa)	Type
InAs/InAlAs Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown