Photoinduced emission of cooper pairs from superconductors

Phys Rev Lett. 2003 Dec 19;91(25):257007. doi: 10.1103/PhysRevLett.91.257007. Epub 2003 Dec 18.

Abstract

Under certain conditions specified in this work, a Cooper pair can be emitted from a superconductor upon the absorption of one ultraviolet photon. The spectra of the excited electron pair carry direct information on the energy and angular pair correlation. These statements are concluded from a formal and numerical analysis based on the Bardeen-Cooper-Schrieffer theory for superconductivity.