单光子探测中的非线性：建模与量子层析成像。

Nonlinearity in single photon detection: modeling and quantum tomography.

作者信息

Akhlaghi Mohsen K, Majedi A Hamed, Lundeen Jeff S

机构信息

Institute for Quantum Computing and ECE Department,University of Waterloo, 200 University Ave West, Waterloo, ON, N2L 3G1, Canada.

出版信息

Opt Express. 2011 Oct 24;19(22):21305-12. doi: 10.1364/OE.19.021305.

DOI:10.1364/OE.19.021305

PMID:22108981

Abstract

Single Photon Detectors are integral to quantum optics and quantum information. Superconducting Nanowire based detectors exhibit new levels of performance, but have no accepted quantum optical model that is valid for multiple input photons. By performing Detector Tomography, we improve the recently proposed model [M.K. Akhlaghi and A.H. Majedi, IEEE Trans. Appl. Supercond. 19, 361 (2009)] and also investigate the manner in which these detectors respond nonlinearly to light, a valuable feature for some applications. We develop a device independent model for Single Photon Detectors that incorporates this nonlinearity.

摘要

单光子探测器是量子光学和量子信息的重要组成部分。基于超导纳米线的探测器展现出了新的性能水平，但尚未有适用于多个输入光子的公认量子光学模型。通过进行探测器层析成像，我们改进了最近提出的模型[M.K. 阿克勒加希和A.H. 马杰迪，《IEEE应用超导学报》19, 361 (2009)]，并研究了这些探测器对光的非线性响应方式，这一特性在某些应用中具有重要价值。我们为单光子探测器开发了一个包含这种非线性的与器件无关的模型。