Weak measurement as a tool for characterizing coherence and quantum correlations in bipartite systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00370120" target="_blank" >RIV/68407700:21340/23:00370120 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1088/1402-4896/acfeb2" target="_blank" >https://doi.org/10.1088/1402-4896/acfeb2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1402-4896/acfeb2" target="_blank" >10.1088/1402-4896/acfeb2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Weak measurement as a tool for characterizing coherence and quantum correlations in bipartite systems

Popis výsledku v původním jazyce

In this article, we study quantum coherence of bipartite state from the perspective of weak measurement, which generalizes the notion of coherence relative to measurement. This is being illustrated by computing coherence for the well-known Bell diagonal and Werner states. Further, we have expanded the notion of coherence to encompass correlations, exploring its connections with other quantifications of nonlocality. We have determined that this coherence measure can be perceived as a generalized version of the Wigner-Yanese skew information measure and several other nonlocal measures. As a natural extension, we introduce uncertainty relations within the context of weak measurements. Additionally, we propose a novel form of variance by considering the weak value of an observable within a comprehensive framework.

Název v anglickém jazyce

Weak measurement as a tool for characterizing coherence and quantum correlations in bipartite systems

Popis výsledku anglicky

In this article, we study quantum coherence of bipartite state from the perspective of weak measurement, which generalizes the notion of coherence relative to measurement. This is being illustrated by computing coherence for the well-known Bell diagonal and Werner states. Further, we have expanded the notion of coherence to encompass correlations, exploring its connections with other quantifications of nonlocality. We have determined that this coherence measure can be perceived as a generalized version of the Wigner-Yanese skew information measure and several other nonlocal measures. As a natural extension, we introduce uncertainty relations within the context of weak measurements. Additionally, we propose a novel form of variance by considering the weak value of an observable within a comprehensive framework.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Physica Scripta

ISSN

0031-8949

e-ISSN

1402-4896

Svazek periodika

98

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

SE - Švédské království

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

001084634000001

EID výsledku v databázi Scopus

2-s2.0-85175609771