Time-resolved detection and mode mismatch in a linear optics quantum gate

Rohde, PP; Ralph, TC

Time-resolved detection and mode mismatch in a linear optics quantum gate

Rohde, PP

Ralph, TC

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Publication Type:: Journal Article
Citation:: New Journal of Physics, 2011, 13
Issue Date:: 2011-05-01

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Field	Value	Language
dc.contributor.author	Rohde, PP https://orcid.org/0000-0002-5814-7289	en_US
dc.contributor.author	Ralph, TC	en_US
dc.date.issued	2011-05-01	en_US
dc.identifier.citation	New Journal of Physics, 2011, 13	en_US
dc.identifier.issn	1367-2630	en_US
dc.identifier.uri	http://hdl.handle.net/10453/109950
dc.description.abstract	Linear optics (LO) is a promising candidate for the implementation of quantum information processing protocols. In such systems, single photons are used to represent qubits. In practice, single photons from different sources will not be perfectly temporally and frequency matched. Therefore, understanding the effects of temporal and frequency mismatch is important in characterizing the dynamics of the system. In this paper, we discuss the impact of temporal and frequency mismatch, how they differ from each other and what their effect is on a simple LO quantum gate. We show that temporal and frequency mismatch have inherently different effects on the operation of the gate. We also consider the spectral effects of the photodetectors, focusing on time-resolved detection, which we show has a strong impact on the operation of such protocols. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.	en_US
dc.relation.ispartof	New Journal of Physics	en_US
dc.relation.isbasedon	10.1088/1367-2630/13/5/053036	en_US
dc.subject.classification	Fluids & Plasmas	en_US
dc.title	Time-resolved detection and mode mismatch in a linear optics quantum gate	en_US
dc.type	Journal Article
utslib.citation.volume	13	en_US
utslib.for	0801 Artificial Intelligence and Image Processing	en_US
utslib.for	0206 Quantum Physics	en_US
utslib.for	02 Physical Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - QSI - Centre for Quantum Software and Information
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	13	en_US

Abstract:

Linear optics (LO) is a promising candidate for the implementation of quantum information processing protocols. In such systems, single photons are used to represent qubits. In practice, single photons from different sources will not be perfectly temporally and frequency matched. Therefore, understanding the effects of temporal and frequency mismatch is important in characterizing the dynamics of the system. In this paper, we discuss the impact of temporal and frequency mismatch, how they differ from each other and what their effect is on a simple LO quantum gate. We show that temporal and frequency mismatch have inherently different effects on the operation of the gate. We also consider the spectral effects of the photodetectors, focusing on time-resolved detection, which we show has a strong impact on the operation of such protocols. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.

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http://hdl.handle.net/10453/109950