Dominic W Berry et al 2004 New J. Phys. 6 93 doi:10.1088/1367-2630/6/1/093
Post-processing with linear optics for improving the quality of single-photon sources
Focus on Single Photons on DemandDominic W Berry1, Stefan Scheel2, Casey R Myers3, Barry C Sanders1,4, Peter L Knight2 and Raymond Laflamme3,5
Show affiliationsPart of Focus on Single Photons on Demand
Triggered single-photon sources produce the vacuum state with non-negligible probability, but produce a much smaller multiphoton component. It is therefore reasonable to approximate the output of these photon sources as a mixture of the vacuum and single-photon states. We show that it is impossible to increase the probability for a single photon using linear optics and photodetection on fewer than four modes. This impossibility is due to the incoherence of the inputs; if the inputs were pure-state superpositions, it would be possible to obtain a perfect single-photon output. In the more general case, a chain of beam splitters can be used to increase the probability for a single photon, but at the expense of adding an additional multiphoton component. This improvement is robust against detector inefficiencies, but is degraded by distinguishable photons, dark counts or multiphoton components in the input.
- PACS
-
42.79.Fm Reflectors, beam splitters, and deflectors
03.67.Lx Quantum computation architectures and implementations
- Subjects
- Dates
-
Issue 1 (July 2004)
Received 3 February 2004
Published 29 July 2004
-
Post-processing with linear optics for improving the quality of single-photon sources
Dominic W Berry et al 2004 New J. Phys. 6 93
-
Experimental study of prewetting transitions by systematic variation of the surface field at nematic liquid crystal/water interfaces
Ch. Bahr 2009 EPL 88 46001
-
Nonequilibrium mesoscopic superconductors in a fluctuational regime
N. Chtchelkatchev and V. Vinokur 2009 EPL 88 47001
-
Results in Kalb-Ramond field localization and resonances on deformed branes
W. T. Cruz et al 2009 EPL 88 41001
-
Are the Kinematics of DLAs in Agreement with their Arising in the Gas Disks of Galaxies?
Martin Zwaan et al. 2008 The Astronomical Journal 136 2886
-
The formation of a charge layer at the interface of GaMnAs and an organic material
Wenjin Chen et al 2009 EPL 88 46002
-
Self-organized growth and optical properties of silver nanoparticle chains and stripes
S. Camelio et al 2007 EPL 79 47002
-
A phenomenological description of the pressure sensitivity of the Curie temperature in hole-doped manganites
G. Garbarino and C. Acha 2009 EPL 88 46003
-
Coupled-resonator optical waveguides in photonic crystals with Archimedean-like tilings
Yiquan Wang 2006 Europhys. Lett. 74 261
-
Monte Carlo simulation on rotation of ferroelectric polarization by rotating magnetic field in conical-spin–ordered multiferroics
Xiaoyan Yao and Qichang Li 2009 EPL 88 47002
Users also read
What's this?- Quantum state discrimination and selected applications
- Quantum optics with single quantum dot devices
- Photon statistics of a non-stationary periodically driven single-photon source