Optimal probabilistic measurement of phase

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F13%3A33144657" target="_blank" >RIV/61989592:15310/13:33144657 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevA.88.045802" target="_blank" >http://dx.doi.org/10.1103/PhysRevA.88.045802</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.88.045802" target="_blank" >10.1103/PhysRevA.88.045802</a>

Result language
angličtina
Original language name
Optimal probabilistic measurement of phase
Original language description
When measuring the phase of quantum states of light, the optimal single-shot measurement implements a projection on the unphysical phase states. If we want to improve the precision further we need to accept a reduced probability of success, either by implementing a probabilistic measurement or by probabilistically manipulating the measured quantum state by means of noiseless amplification. We analyze the limits of this approach by finding the optimal probabilistic measurement that, for a given rate of success, maximizes the precision with which the phase can be measured.
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
<a href="/en/project/GAP205%2F12%2F0577" target="_blank" >GAP205/12/0577: Reliable highly nonlinear quantum information processing of light</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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