Luminescence of a Cooper Pair
Yasuhiro Asano, Ikuo Suemune, Hideaki Takayanagi, and Eiichi Hanamura
TL;DR
This paper presents a theoretical analysis of photon emission in superconducting pn-junctions, revealing how Cooper pair recombination significantly enhances luminescence and explaining experimental observations, with implications for superconducting light-emitting devices.
Contribution
It introduces a theoretical framework showing how Cooper pair recombination boosts luminescence in superconducting pn-junctions, aligning with experimental data.
Findings
Recombination of Cooper pairs enhances luminescence intensity.
Photon emission spectra match observed experimental features.
Superconducting devices can achieve high luminescence functionalities.
Abstract
This paper theoretically discusses the photon emission spectra of a superconducting pn-junction. On the basis of the second order perturbation theory for electron-photon interaction, we show that the recombination of a Cooper with two p-type carriers causes drastic enhancement of the luminescence intensity. The calculated results of photon emission spectra explain characteristic features of observed signal in an recent experiment. Our results indicate high functionalities of superconducting light-emitting devices.
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