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From Linear Optical Quantum Computing to Heisenberg-Limited Interferometry
Hwang Lee, Pieter Kok, Colin P. Williams +1
The working principles of linear optical quantum computing are based on photodetection, namely, projective measurements. The use of photodetection can provide efficient nonlinear i…
Towards photostatistics from photon-number discriminating detectors
Hwang Lee, Ulvi H. Yurtsever, Pieter Kok +4
We study the properties of a photodetector that has a number-resolving capability. In the absence of dark counts, due to its finite quantum efficiency, photodetection with such a d…
Quantum Imaging and Metrology
Hwang Lee, Pieter Kok, Jonathan P. Dowling
The manipulation of quantum entanglement has found enormous potential for improving performances of devices such as gyroscopes, clocks, and even computers. Similar improvements hav…
An All Linear Optical Quantum Memory Based on Quantum Error Correction
Robert M. Gingrich, Pieter Kok, Hwang Lee +2
When photons are sent through a fiber as part of a quantum communication protocol, the error that is most difficult to correct is photon loss. Here, we propose and analyze a two-to…
Conditional linear-optical measurement schemes generate effective photon nonlinearities
G. G. Lapaire, Pieter Kok, Jonathan P. Dowling +1
We provide a general approach for the analysis of optical state evolution under conditional measurement schemes, and identify the necessary and sufficient conditions for such schem…
Optical Communication Noise Rejection Using Correlated Photons
Deborah J. Jackson, George M. Hockney, Jonathan P. Dowling
This paper describes a completely new way to perform noise rejection using a two-photon sensitive detector and taking advantage of the properties of correlated photons to improve a…