Quantum Entanglement and Quantum Information in High Energy Physics

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 641

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CERN-EP, CERN, Geneva, Switzerland
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Special Issue Information

Dear Colleagues,

The aim of this Special Issue is to explore the core aspects of quantum information (QI), delving into the captivating realm of QI at high-energy colliders. Over the last few years, there has been growing interest in investigating QI's fundamental facets in relation to relativistic energies, leveraging collider data in high-energy physics (HEP) experiments, notably at the large hadron collider (LHC) at CERN. This Special Issue will primarily focus on physics studies related to quantum entanglement (QE), superposition, and Bell non-locality. The evolving landscape of QI applications in HEP, particularly at CERN, is becoming popular, in conjunction with a huge global progress in quantum technologies. The Special Issue will also encompass topics showcasing the recent advances in quantum computing, quantum algorithms, and quantum machine learning (QML), unveiling promising applications within the field of HEP at CERN. 

Dr. Theodota Lagouri
Guest Editor

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Keywords

  • quantum entanglement
  • quantum information
  • quantum computing
  • quantum machine learning

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Published Papers (1 paper)

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Review

13 pages, 338 KiB  
Review
Entanglement and Bell Inequality Violation in Bϕϕ Decays
by Emidio Gabrielli and Luca Marzola
Symmetry 2024, 16(8), 1036; https://doi.org/10.3390/sym16081036 - 13 Aug 2024
Viewed by 412
Abstract
The decays of the B meson into vector mesons, observed during the LHCb experiment, provide an ideal laboratory to investigate particle physics phenomena with quantum information theory methods. In this article, we focus on the decays yielding a pair of ϕ mesons to [...] Read more.
The decays of the B meson into vector mesons, observed during the LHCb experiment, provide an ideal laboratory to investigate particle physics phenomena with quantum information theory methods. In this article, we focus on the decays yielding a pair of ϕ mesons to investigate the presence of entanglement in the spin correlations of the system and quantify the amount of Bell inequality violation it entails. Our results show that the present LHCb data allow access to entanglement and to the Bell inequality violation with a significance exceeding the 5σ threshold in both the cases. This demonstrates that the strong and electroweak interactions responsible for the B meson decay act as a source of entanglement and the quantum mechanics nature of high-energy phenomena. Particular attention is paid to the assessment of loopholes: deficiencies in the experimental setup which could invalidate the results of the Bell test. Full article
(This article belongs to the Special Issue Quantum Entanglement and Quantum Information in High Energy Physics)

Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Entanglement and Bell inequality violation in B meson decays
Authors: Emidio Gabrielli; Luca Marzola
Affiliation: Department of Physics, University of Trieste, Italy
Abstract: The decays of the B meson into vector mesons, observed at the LHCb experiment, provide an ideal laboratory to investigate particle physics phenomena with quantum information theory methods. In this article, we focus on the decays yielding a pair of Phi mesons to show the presence of entanglement in the spin correlations of the system and quantify the amount of Bell inequality violation it entails. This demonstrates that the strong and electroweak interactions responsible for the B meson decay act as a source of entanglement and the quantum mechanics nature of high-energy phenomena. Particular attention is paid to the assessment of loopholes: deficiencies in the experimental setup which could invalidate the results of the Bell test.

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