Nonlinearity in single photon detection: modeling and quantum tomography

Mohsen K Akhlaghi; A Hamed Majedi; Jeff S Lundeen

doi:10.1364/OE.19.021305

Nonlinearity in single photon detection: modeling and quantum tomography

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

Authors

Mohsen K Akhlaghi¹, A Hamed Majedi, Jeff S Lundeen

Affiliation

¹ Institute for Quantum Computing and ECE Department,University of Waterloo, 200 University Ave West, Waterloo, ON, N2L 3G1, Canada. mkeshava@maxwell.uwaterloo.ca

PMID: 22108981
DOI: 10.1364/OE.19.021305

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.

Publication types

Research Support, Non-U.S. Gov't