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New Trends in Quantum Information and Quantum Optics

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

Deadline for manuscript submissions: closed (30 August 2024) | Viewed by 1465

Special Issue Editor


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Guest Editor
Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, 09210-170 Santo André, São Paulo, Brazil
Interests: quantum information; quantum optics; open quantum systems

Special Issue Information

Dear Colleagues,

Quantum information and quantum optics are two leading fields at the forefront of what came to be known as quantum technology. This term refers to a broad range of technological developments that harness the principles of quantum mechanics for applications such as computing, transport, precision measurements, and communication. In fact, there is a close connection between quantum technology and the concept of quantumness, i.e., the distinguishing features of quantum systems that set them apart from their classical counterparts. The same can be said about the concept of entropy and the tools of information theory. In quantum optics, for instance, entropy provides insights into the statistical properties, correlations, and thermal behavior of photons. In quantum information, the analysis of the capacity, fidelity, and security of quantum communication channels relies heavily on entropy and information theory. In this Special Issue, we explore the modern trends in quantum optics and quantum information which highlight the central role of entropy, information theory, and quantumness in advancing quantum technologies. We welcome high-quality contributions spanning a wide range of topics, including but not limited to:

* Entropy and information theory applied to quantum optics and quantum information.

* Quantum correlations, nonlocality, and quantumness.

* States and reservoir engineering in quantum systems.

* Quantum transport and thermodynamics in controlled quantum systems.

* Quantum metrology, sensing, and precision measurements with quantum resources.

* Machine learning applied to quantum systems.

We encourage researchers from diverse backgrounds and perspectives to contribute their original research articles to this Special Issue. This offers a unique opportunity for the sharing of the latest findings and innovative ideas within the thriving community involved with quantum technologies.

Dr. Fernando L. Semião
Guest Editor

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 technology
  • quantum information
  • quantum optics
  • entropy
  • information theory
  • quantumness
  • open quantum systems
  • quantum transport
  • quantum thermodynamics

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Published Papers (1 paper)

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Research

20 pages, 1141 KiB  
Article
Harnessing Nth Root Gates for Energy Storage
by Elliot John Fox, Marcela Herrera, Ferdinand Schmidt-Kaler and Irene D’Amico
Entropy 2024, 26(11), 952; https://doi.org/10.3390/e26110952 - 6 Nov 2024
Viewed by 840
Abstract
We explore the use of fractional controlled-not gates in quantum thermodynamics. The Nth-root gate allows for a paced application of two-qubit operations. We apply it in quantum thermodynamic protocols for charging a quantum battery. Circuits for three (and two) qubits are analysed by [...] Read more.
We explore the use of fractional controlled-not gates in quantum thermodynamics. The Nth-root gate allows for a paced application of two-qubit operations. We apply it in quantum thermodynamic protocols for charging a quantum battery. Circuits for three (and two) qubits are analysed by considering the generated ergotropy and other measures of performance. We also perform an optimisation of initial system parameters, e.g.,the initial quantum coherence of one of the qubits strongly affects the efficiency of protocols and the system’s performance as a battery. Finally, we briefly discuss the feasibility for an experimental realization. Full article
(This article belongs to the Special Issue New Trends in Quantum Information and Quantum Optics)
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