Harnessing temporal modes for multi-photon quantum information processing based on integrated optics
In the last few decades, there has been much progress on low loss waveguides, very efficient photon-number detectors and nonlinear processes. Engineered sum-frequency conversion is now at a stage where it allows operation on arbitrary temporal broadband modes, thus making the spectral degree of free...
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Published in | Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences Vol. 375; no. 2099; p. 20160244 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
England
The Royal Society Publishing
06.08.2017
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Subjects | |
Online Access | Get full text |
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Summary: | In the last few decades, there has been much progress on low loss waveguides, very efficient photon-number detectors and nonlinear processes. Engineered sum-frequency conversion is now at a stage where it allows operation on arbitrary temporal broadband modes, thus making the spectral degree of freedom accessible for information coding. Hereby the information is often encoded into the temporal modes of a single photon. Here, we analyse the prospect of using multi-photon states or squeezed states in different temporal modes based on integrated optics devices. We describe an analogy between mode-selective sum-frequency conversion and a network of spatial beam splitters. Furthermore, we analyse the limits on the achievable squeezing in waveguides with current technology and the loss limits in the conversion process.
This article is part of the themed issue ‘Quantum technology for the 21st century’. |
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Bibliography: | Discussion meeting issue “Quantum technology for the 21st century” organised and edited by Peter Knight, Ian Walmsley, Gerard Milburn, Jonathan Pritchard and Stephen Till ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 One contribution of 7 to a discussion meeting issue ‘Quantum technology for the 21st century’. |
ISSN: | 1364-503X 1471-2962 |
DOI: | 10.1098/rsta.2016.0244 |