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Quantum coherence and nonlocality capture nature of quantumness from different aspects. For the two-qubit states with diagonal correlation matrix, we prove strictly a hierarchy between the nonlocal advantage of quantum coherence (NAQC) and…

量子物理 · 物理学 2018-09-25 Ming-Liang Hu , Xiao-Min Wang , Heng Fan

By local measurements on party $A$ of a system $AB$ and classical communication between its two parties, one can achieve a nonlocal advantage of quantum coherence (NAQC) on party $B$. For the $l_1$ norm of coherence and the relative entropy…

量子物理 · 物理学 2018-08-15 Ming-Liang Hu , Heng Fan

Coherences in mutually unbiased bases of states of an isolated quantum system follow a complementarity relation. The nonlocal advantage of quantum coherence (NAQC), defined in a bipartite scenario, is a situation in which the average…

量子物理 · 物理学 2023-12-01 Priya Ghosh , Mahasweta Pandit , Chirag Srivastava , Ujjwal Sen

Sequential sharing of nonlocal correlation is inherently related to its application. We address the question as to how many observers can share the nonlocal advantage of quantum coherence (NAQC) in a $(d\times d)$-dimensional state, where…

量子物理 · 物理学 2022-05-02 Ming-Liang Hu , Jia-Ru Wang , Heng Fan

Non-local Advantage of Quantum Coherence(NAQC) or steerability of local quantum coherence is a strong non-local resource based on coherence complementarity relations. In this work, we provide an upper bound on the number of observers who…

量子物理 · 物理学 2018-10-11 Shounak Datta , A. S. Majumdar

The observation of the non-local properties of multipartite entangled states is of great importance for quantum information protocols. Such properties, however, are fragile and may not be observed in the presence of decoherence exhibited by…

量子物理 · 物理学 2015-02-27 A. Sohbi , I. Zaquine , E. Diamanti , D. Markham

Recently, a connection between quantum coherence and quantum steering was established and criteria for quantum steering or in other words, nonlocal advantage of quantum coherence (NAQC) were derived for two-qubit states. Here, we derive a…

量子物理 · 物理学 2018-11-26 Debasis Mondal , Dagomir Kaszlikowski

Using the wave-packet approach to neutrino oscillations, we analyze Quantum-Memory-Assisted Entropic Uncertainty Relations and show that uncertainty and the Non-local Advantage of Quantum Coherence are anti-correlated. Furthermore, we…

量子物理 · 物理学 2023-11-14 Massimo Blasone , Silvio De Siena , Cristina Matrella

We propose to detect quantum entanglement by a condition of local measurments. We find that this condition can detect efficiently the pure entangled states for both discrete and continuous variable systems. It does not depend on…

量子物理 · 物理学 2015-05-30 Qing Xie , X. -X. Wu , X. -M. Ding , W. -L. Yang , R. -H. Yue , H. Fan

Entanglement of quasiclassical (coherent) states of two harmonic oscillators leads to striking quantum effects and is useful for quantum technologies. These effects and applications are closely related to nonlocal correlations inherent in…

量子物理 · 物理学 2019-05-14 Zhi-Rong Zhong , Jian-Qi Sheng , Li-Hua Lin , Shi-Biao Zheng

Bell inequality violation is a quantitative measurement tool for quantum entanglement. Quantum entanglement is the heart of quantum information science, in which the resulting nonlocal correlation between remotely separated photons shows a…

量子物理 · 物理学 2023-05-08 Byoung S. Ham

Bell's test, initially devised to distinguish quantum theory from local hidden variable models through {violations of local bounds}, is also a common tool for detecting entanglement. For this purpose, one can assume the quantum description…

量子物理 · 物理学 2026-04-21 Liang-Liang Sun , Yong-Shun Song , Sixia Yu

Continuous-variable quantum states are of particular importance in various quantum information processing tasks including quantum communication and quantum sensing. However, a bottleneck has emerged with the fast increasing in size of the…

量子物理 · 物理学 2021-10-13 Ye-Chao Liu , Jiangwei Shang , Xiangdong Zhang

In this study, we investigate a pair of detectors operating in Minkowski space-time and analyze the characteristics of various quantum resources within this framework. Specifically, we focus on examining the properties of Bell nonlocality,…

高能物理 - 理论 · 物理学 2026-02-10 Yu-Kun Zhang , Tariq Aziz , Li-Juan Li , Xue-Ke Song , Liu Ye , Dong Wang

Quantum nonlocality is tested for an entangled coherent state, interacting with a dissipative environment. A pure entangled coherent state violates Bell's inequality regardless of its coherent amplitude. The higher the initial nonlocality,…

量子物理 · 物理学 2009-11-07 D. Wilson , H. Jeong , M. S. Kim

Increasingly sophisticated quantum computers motivate the exploration of their abilities in certifying genuine quantum phenomena. Here, we demonstrate the power of state-of-the-art IBM quantum computers in correlation experiments inspired…

量子物理 · 物理学 2021-07-28 Elisa Bäumer , Nicolas Gisin , Armin Tavakoli

The aim of this thesis is to investigate quantum entanglement and quantum nonlocality of bipartite finite-dimensional systems (bipartite qudits). Entanglement is one of the most fascinating non-classical features of quantum theory, and…

量子物理 · 物理学 2009-07-09 Christoph Spengler

Quantum imaginarity and quantum nonlocality capture the essence of quantumness of a physical system from different aspects. We establish a connection between the imaginarity and quantum nonlocality in any two-qubit states. Based on the…

量子物理 · 物理学 2024-11-07 Zhi-Wei Wei , Shao-Ming Fei

One of the most notable aspects of quantum systems is that their components can exhibit correlations much stronger than those allowed by classical physics. Two examples of quantum correlations are quantum entanglement and Bell nonlocality,…

高能物理 - 唯象学 · 物理学 2025-10-30 Matthew Low

Local or nonlocal character of quantum states can be quantified and is subject to various bounds that can be formulated as complementarity relations. Here, we investigate the local vs. nonlocal character of pure three-qubit states by a…

量子物理 · 物理学 2008-11-19 Xinhua Peng , Jingfu Zhang , Jiangfeng Du , Dieter Suter
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