Theories and Applications of Quantum Entanglement

A special issue of Universe (ISSN 2218-1997).

Deadline for manuscript submissions: closed (15 June 2023) | Viewed by 1973

Special Issue Editor


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Guest Editor
Department of Physics, Fudan University, Shanghai, China
Interests: quantum entanglement and its uses in condensed matter physics and particle physics

Special Issue Information

Dear Colleagues,

Quantum entanglement has become an important topic in the frontiers of physics, in connection with all the branches of quantum physics, as well as quantum information, quantum communication, quantum computing, quantum metrology and so on. To promote research in this rapidly developing field, we are launching this Special Issue on "Quantum Entanglement" in the journal Universe, and invite research papers on all aspects of quantum entanglement.

It is a happy coincidence that during our preparation of this Special Issue, the Nobel Prize in Physics 2022 was awarded jointly to Alain Aspect, John F. Clauser and Anton Zeilinger "for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science". This event convinces us that our choice of this topic is timely and suitable.

Welcome to this Special Issue on "Quantum Entanglement".

You may choose our Joint Special Issue in Entropy.

Prof. Dr. Yu Shi
Guest Editor

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Keywords

  • quantum entanglement
  • quantum information
  • quantum communication
  • quantum computing
  • quantum metrology
  • entangled state
  • quantum simulation
  • quantum algorithm
  • bell inequality

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Published Papers (1 paper)

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Research

14 pages, 872 KiB  
Article
Local Quantum Uncertainty and Quantum Interferometric Power in an Anisotropic Two-Qubit System
by Nour Zidan, Atta Ur Rahman, Saeed Haddadi, Artur Czerwinski and Soroush Haseli
Universe 2023, 9(1), 5; https://doi.org/10.3390/universe9010005 - 21 Dec 2022
Cited by 17 | Viewed by 2957
Abstract
Investigating the favorable configurations for non-classical correlations preservation has remained a hotly debated topic for the last decade. In this regard, we present a two-qubit Heisenberg spin chain system exposed to a time-dependent external magnetic field. The impact of various crucial parameters, such [...] Read more.
Investigating the favorable configurations for non-classical correlations preservation has remained a hotly debated topic for the last decade. In this regard, we present a two-qubit Heisenberg spin chain system exposed to a time-dependent external magnetic field. The impact of various crucial parameters, such as initial strength and angular frequency of the external magnetic field along with the state’s purity and anisotropy of the spin-spin on the dynamical behavior of quantum correlations are considered. We utilize local quantum uncertainty (LQU) and quantum interferometric power (QIP) to investigate the dynamics of quantum correlations. We show that under the critical angular frequency of the external magnetic field and the spin-spin anisotropy, quantum correlations in the system can be successfully preserved. LQU and QIP suffer a drop as the interaction between the system and field is initiated, however, are quickly regained by the system. This tendency is confirmed by computing a measure of non-classical correlations according to the Clauser–Horne–Shimony–Holt inequality. Notably, the initial and final preserved levels of quantum correlations are only varied when variation is caused in the state’s purity. Full article
(This article belongs to the Special Issue Theories and Applications of Quantum Entanglement)
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