Manipulation of a two-photon pump in superconductor - semiconductor heterostructures
Mesoscale and Nanoscale Physics
2014-03-14 v2 Optics
Quantum Physics
Abstract
We investigate the photon statistics, entanglement and squeezing of a pn-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.
Cite
@article{arxiv.1308.4684,
title = {Manipulation of a two-photon pump in superconductor - semiconductor heterostructures},
author = {Paul Baireuther and Peter P. Orth and Ilya Vekhter and Jörg Schmalian},
journal= {arXiv preprint arXiv:1308.4684},
year = {2014}
}
Comments
4+ pages, 3 figures; includes Supplemental Material (9 pages, 1 figure). Published version