利用交叉相位调制从非理想源产生预报纯单光子
摘要
现实单光子源不能确然产生单光子，而是产生Fock态 与真空（噪声）的光子统计混合。我们描述如何通过另一噪声源或相干态与交叉相位调制（XPM）消除源输出中的噪声。我们提出一种预报纯单光子产生、从而消除真空贡献的方案。这是通过Mach-Zehnder干涉仪验证XPM相关相移来实现的。
引用
@article{arxiv.quant-ph/0602225,
title = {Production of heralded pure single photons from imperfect sources using cross phase modulation},
author = {Thomas Konrad and Michael Nock and Artur Scherer and Juergen Audretsch},
journal= {arXiv preprint arXiv:quant-ph/0602225},
year = {2007}
}
备注
8 pages, 8 EPS figures, RevTeX4. Following changes have been made in v.3: Title and abstract slightly changed; numerous minor revisions and clarifications within the text; an appendix with three new figures has been added. In version v4 we have included a supplementary analysis of our scheme that takes into account absorption losses. Our analysis is heuristic and based on a phenomenological model, which is independent of the physical realization of the proposed scheme. We have estimated upper bounds up to which absorption losses can be tolerated, so as our scheme to improve the efficiency of single photon sources still works. Accepted for publication in Phys. Rev. A