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Related papers: Nonlocal Advantage of Quantum Coherence in Top Qua…

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Nonlocal advantage of quantum coherence (NAQC) based on coherence complementarity relations is generally viewed as a stronger nonclassical correlation than Bell nonlocality. An arbitrary two-qubit state with NAQC must be an entangled state,…

Quantum Physics · Physics 2019-08-12 Zhi-Yong Ding , Huan Yang , Hao Yuan , Dong Wang , Jie Yang , Liu Ye

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…

Quantum Physics · Physics 2018-08-15 Ming-Liang Hu , Heng Fan

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…

Quantum Physics · Physics 2023-11-14 Massimo Blasone , Silvio De Siena , Cristina Matrella

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…

Quantum Physics · Physics 2018-09-25 Ming-Liang Hu , Xiao-Min Wang , 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…

Quantum Physics · Physics 2023-12-01 Priya Ghosh , Mahasweta Pandit , Chirag Srivastava , Ujjwal Sen

Top quark pairs produced at the Large Hadron Collider (LHC) provide a unique window into quantum information theory at high energies. One of the most ubiquitous measurements of quantum information is the violation of Bell's inequality. We…

High Energy Physics - Experiment · Physics 2022-02-24 Andrew Wildridge

We study quantum coherence in top-antitop production at the LHC by comparing Standard Model predictions with CMS data across different kinematic regimes. Theory and experiment are statistically consistent in the near-threshold and boosted…

High Energy Physics - Phenomenology · Physics 2026-02-25 Saeed Haddadi , Majid Azizi , Artur Czerwinski

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…

Quantum Physics · Physics 2022-05-02 Ming-Liang Hu , Jia-Ru Wang , Heng Fan

As the most massive particle in the Standard Model, the top quark's exceptionally short lifetime preserves its spin polarization information through direct decay, making it an ideal system for probing quantum correlations in high-energy…

Quantum Physics · Physics 2026-04-14 Duo-Duo Chen , Xue-Ke Song , Liu Ye , Dong Wang

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…

Quantum Physics · Physics 2018-10-11 Shounak Datta , A. S. Majumdar

It has been shown that entanglement and Bell nonlocality, which are key concepts in Quantum Mechanics, can be probed in high-energy colliders via processes of fundamental particle scattering. In fact, the ATLAS and CMS collaborations have…

High Energy Physics - Phenomenology · Physics 2025-06-17 Yoav Afik , Yevgeny Kats , Juan Ramón Muñoz de Nova , Abner Soffer , David Uzan

We show that the entanglement observed in top-antitop quark spin states at the LHC is local in the energy region close to the production threshold. In contrast, nonlocal entanglement is observed in the central boosted region defined by a…

High Energy Physics - Phenomenology · Physics 2025-10-23 M. Fabbrichesi , R. Floreanini , L. Marzola

Recent results from the Large Hadron Collider have demonstrated quantum entanglement of top quark-antiquark pairs using the spin degrees of freedom. Based on the doubly differential measurement of the spin density matrix of the top quark…

The recent observation of entanglement between top and anti-top quarks at the LHC opens the way to interpreting collider data with quantum information tools. In this work we investigate the relevance of quantum observables in searches of…

High Energy Physics - Phenomenology · Physics 2024-03-21 Fabio Maltoni , Claudio Severi , Simone Tentori , Eleni Vryonidou

The measurement of top-quark spin correlations provides a key tool for probing its interactions with high precision. Owing to its extremely short lifetime ($\tau \sim 10^{-25}$ s), the top quark preserves its spin polarization information,…

Entanglement is a central subject in quantum mechanics. Due to its genuine relativistic behavior and fundamental nature, high-energy colliders are attractive systems for the experimental study of fundamental aspects of quantum mechanics. We…

Quantum Physics · Physics 2021-09-08 Yoav Afik , Juan Ramón Muñoz de Nova

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…

Quantum Physics · Physics 2023-05-08 Byoung S. Ham

Top quarks represent unique high-energy systems since their spin correlations can be measured, thus allowing to study fundamental aspects of quantum mechanics with qubits at high-energy colliders. We present here the general framework of…

Quantum Physics · Physics 2022-10-05 Yoav Afik , Juan Ramón Muñoz de Nova

A review of recent measurements of top-quark properties is presented. Inclusive and differential top-quark pair charge asymmetry measurements using the full Run I dataset are found to be in agreement with the standard model (SM)…

High Energy Physics - Experiment · Physics 2016-05-19 Kelly Beernaert

Quantum coherence is an essential ingredient in quantum information processing and plays a central role in emergent fields such as nanoscale thermodynamics and quantum biology. However, our understanding and quantitative characterization of…

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