Experimentally Realizable Quantum Comparison of Coherent States and its Applications

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F06%3A04121606" target="_blank" >RIV/68407700:21340/06:04121606 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Experimentally Realizable Quantum Comparison of Coherent States and its Applications

Original language description

When comparing quantum states to each other, it is possible to obtain an unambiguous answer, indicating that the states are definitely different, already after a single measurement. In this paper we investigate comparison of coherent states, which is thesimplest example of quantum state comparison for continuous variables. The method we present has a high success probability, and is experimentally feasible to realize as the only required components are beam splitters and photon detectors. An easily realizable method for quantum state comparison could be important for real applications. As examples of such applications we present a "lock and key" scheme and a simple scheme for quantum public key distribution.

Czech name

Experimentálně realizovatelné kvantové porovnání koherentních stavů a jeho aplikace

Czech description

Kdyz srovnavame kvantove stavy je mozno ziskat jednoznacnou odpoved jestli jsou ruzne uz jednim merenim. V clanku analyzujeme moznost srovnavani koherentnich stavu, ktere predstavuji nejjednodussi pripad srovnavani stavu se spojitou promennou. Navrzena metoda ma snacnou pravdepodobnost uspechu a nabizi radu moznych aplikaci. Prikladem muze byt schema zamku a klice a metoda distribuce kvantoveho klice.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BE - Theoretical physics

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

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review A

ISSN

1050-2947

e-ISSN

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Volume of the periodical

74

Issue of the periodical within the volume

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Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

022304-022304

UT code for WoS article

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EID of the result in the Scopus database

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