Measuring concurrence in qubit Werner states without an aligned reference frame

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00551276" target="_blank" >RIV/68378271:_____/21:00551276 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/21:73609128

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevApplied.16.054042" target="_blank" >https://doi.org/10.1103/PhysRevApplied.16.054042</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevApplied.16.054042" target="_blank" >10.1103/PhysRevApplied.16.054042</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measuring concurrence in qubit Werner states without an aligned reference frame

Popis výsledku v původním jazyce

The genuine concurrence is a standard quantifier of multipartite entanglement, detection, and quantification of which still remains a difficult problem from both the theoretical and experimental points of view. Although many efforts have been devoted to the detection of multipartite entanglement (e.g., using entanglement witnesses), measuring the degree of multipartite entanglement, in general, requires some knowledge about the exact shape of a density matrix of the quantum state. An experimental reconstruction of such a density matrix can be done by full state tomography, which amounts to having the distant parties share a common reference frame and well-calibrated devices. Although this assumption is typically made implicitly in theoretical works, establishing a common reference frame, as well as aligning and calibrating measurement devices in experimental situations, are never trivial tasks.n

Název v anglickém jazyce

Measuring concurrence in qubit Werner states without an aligned reference frame

Popis výsledku anglicky

The genuine concurrence is a standard quantifier of multipartite entanglement, detection, and quantification of which still remains a difficult problem from both the theoretical and experimental points of view. Although many efforts have been devoted to the detection of multipartite entanglement (e.g., using entanglement witnesses), measuring the degree of multipartite entanglement, in general, requires some knowledge about the exact shape of a density matrix of the quantum state. An experimental reconstruction of such a density matrix can be done by full state tomography, which amounts to having the distant parties share a common reference frame and well-calibrated devices. Although this assumption is typically made implicitly in theoretical works, establishing a common reference frame, as well as aligning and calibrating measurement devices in experimental situations, are never trivial tasks.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Physical Review Applied

ISSN

2331-7019

e-ISSN

2331-7019

Svazek periodika

16

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

054042

Kód UT WoS článku

000722893000002

EID výsledku v databázi Scopus

2-s2.0-85120530976