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Quantum Entanglement—Second Edition

A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Quantum Information".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 843

Special Issue Editors


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Guest Editor
Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore
Interests: foundation in quantum mechanics; quantum entanglement; photon–atom interactions; quantum synchronization; atomtronics; chip-based quantum cryptography; quantum devices; quantum metrology
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Turin, Italy
Interests: experimental quantum; imaging metrology & sensing; quantum information processing; foundation in quantum mechanics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Quantum entanglement and, more in general, quantum correlations, represent acharacteristic trait of quantum mechanics. In recent years, quantum entanglement and its correlations have become a formidable tool for overcoming the classical limits in several fields, ranging from calculus and communication to imaging and metrology.

We can quantify quantum entanglement and correlations in different ways. Some of these measures hierarchically relate to each other. These measures have also been extensively applied in many fields, ranging from quantum optics to atomic and molecular physics.

This Special Issue aims to present both theoretical and experimental works related to quantum entanglement and correlations. The Guest Editors welcome theoretical and experimental papers on all aspects of research on quantum correlations, ranging from purely abstract matter to commercial applications. Topics of interest include but are not limited to quantum technologies (including quantum information, quantum communication, quantum metrology and sensing, quantum imaging, and so forth), foundations of quantum mechanics, and new measures and applications of quantum correlations.

Prof. Dr. Leong Chuan Kwek
Prof. Dr. Marco Genovese
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Entropy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • quantum entanglement
  • quantum correlations
  • quantum information
  • foundations of quantum mechanics
  • quantum communication
  • quantum metrology and sensing
  • quantum imaging

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Published Papers (1 paper)

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Research

13 pages, 2783 KiB  
Article
New Quantum Private Comparison Using Bell States
by Min Hou and Yue Wu
Entropy 2024, 26(8), 682; https://doi.org/10.3390/e26080682 - 13 Aug 2024
Viewed by 542
Abstract
Quantum private comparison (QPC) represents a cryptographic approach that enables two parties to determine whether their confidential data are equivalent, without disclosing the actual values. Most existing QPC protocols utilizing single photons or Bell states are considered highly feasible, but they suffer from [...] Read more.
Quantum private comparison (QPC) represents a cryptographic approach that enables two parties to determine whether their confidential data are equivalent, without disclosing the actual values. Most existing QPC protocols utilizing single photons or Bell states are considered highly feasible, but they suffer from inefficiency. To address this issue, we present a novel QPC protocol that capitalizes on the entanglement property of Bell states and local operations to meet the requirements of efficiency. In the proposed protocol, two participants with private inputs perform local operations on shared Bell states received from a semi-honest third party (STP). Afterward, the modified qubits are returned to the STP, who can then determine the equality of the private inputs and relay the results to the participants. A simulation on the IBM Quantum Cloud Platform confirmed the feasibility of our protocol, and a security analysis further demonstrated that the STP and both participants were unable to learn anything about the individual private inputs. In comparison to other QPC protocols, our proposed solution offers superior performance in terms of efficiency. Full article
(This article belongs to the Special Issue Quantum Entanglement—Second Edition)
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