Scheme for a linear-optical controlled-phase gate with programmable phase shift

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F15%3A33154930" target="_blank" >RIV/61989592:15310/15:33154930 - isvavai.cz</a>
Result on the web
<a href="http://iopscience.iop.org/article/10.1088/2040-8978/17/12/125202/pdf" target="_blank" >http://iopscience.iop.org/article/10.1088/2040-8978/17/12/125202/pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/2040-8978/17/12/125202" target="_blank" >10.1088/2040-8978/17/12/125202</a>

Result language
angličtina
Original language name
Scheme for a linear-optical controlled-phase gate with programmable phase shift
Original language description
We present a linear-optical scheme for a controlled-phase gate with tunable phase shift programmed by a qubit state. In contrast to all previous tunable controlled-phase gates, the phase shift is not hard-coded into the optical setup, but can be tuned toany value from 0 to ? by the state of a so-called program qubit. Our setup is feasible with current level of technology using only linear-optical components. We provide an experimental feasibility study to assess the gate's implementability. We also discuss options for increasing the success probability up to 1/12; this approaches the success probability of an optimal non-programmable tunable controlledphase gate.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BH - Optics, masers and lasers
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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