Unified space-time description of pulsed twin beams
Abstract
This work provides a mathematical derivation of a quasi-stationary model for multimode parametric down-conversion, which was presented in [Gatti et al., Sci. Rep. 13, 16786] with heuristic arguments. The model is here derived from the 3D+1 propagation equation of the quantum fields in a nonlinear crystal, and its approximations discussed thoroughly. Thanks to its relative simplicity, and to the fact that it is valid in any gain regime, both at a quantum and classical level, it allows a unified description of disparate experimental observations conducted over the last 20 years, often described in the past by means of limited ad hoc models.
Keywords
Cite
@article{arxiv.2410.01907,
title = {Unified space-time description of pulsed twin beams},
author = {Alessandra Gatti and Enrico Brambilla and Ottavia Jedrkiewicz},
journal= {arXiv preprint arXiv:2410.01907},
year = {2024}
}
Comments
Accepted for publication on Phyl.Trans. of The Royal Soc. A, will appear with DOI 10.1098/rsta.2023.0334. Main ms: 14 pages, 6 figures. Supplementary: 9 pages, 6 figures