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An operational distinction between quantum entanglement and classical non-separability.
Philos Trans A Math Phys Eng Sci
December 2024
Max-Planck-Institut für die Physik des Lichts, Staudtstraße 2, Erlangen 91058, Germany.
Quantum entanglement describes superposition states in multi-dimensional systems-at least two partite-which cannot be factorized and are thus non-separable. Non-separable states also exist in classical theories involving vector spaces. In both cases, it is possible to violate a Bell-like inequality.
View Article and Find Full Text PDFUndergraduate setup for measuring the Bell inequalities and performing quantum state tomography.
EPJ Quantum Technol
December 2024
Departament de Física Quàntica i Astrofísica, Facultat de Física, Universitat de Barcelona (UB), C. Martí i Franquès, 1, 08028 Barcelona, Spain.
The growth of quantum technologies is attracting the interest of many students eager to learn concepts such as quantum entanglement or quantum superposition. However, the non-intuitive nature of these concepts poses a challenge to understanding them. Here, we present an entangled photon system which can perform a Bell test, i.
View Article and Find Full Text PDFFrom quantum communication fundamentals to decoherence mitigation strategies: Addressing global quantum network challenges and projected applications.
Heliyon
July 2024
SEECS, National University of Sciences and Technology (NUST), H-12, Islamabad, Pakistan.
In the aftermath of unparalleled disruptive technologies, the quantum realm has become a fundamental field of research due to unrivaled computational power and super-secure communication. In addition to conventional networks, a new word in the quantum domain is quantum network. The quantum network uses quantum communication (QC) to send quantum information bits known as qubits, to predetermined destination nodes.
View Article and Find Full Text PDFSign, Signifier and Signified in Schrödinger's box.
MethodsX
December 2024
School of Social Sciences and Languages, Vellore Institute of Technology, Vandalur - Kelambakkam Road, Chennai 600127, Tamil Nadu, India.
This study of the article proposes an interdisciplinary approach, integrating quantum mechanics and structuralism to elucidate the complex dynamics of signification. By paralleling the ambiguous nature of subatomic particles with the linguistic system, the study examines the arbitrary relationship between sign, signifier, and signified through quantum principles. Key concepts from quantum mechanics, such as wave-particle duality, superposition, entanglement, and observer effect, are applied to Saussure's theory of signs, revealing intriguing analogies between the two domains.
View Article and Find Full Text PDFQuantum game strategy solution for R&D cartel: Reorganizing government R&D investment strategy in Korea.
PLoS One
December 2024
Center for R&D Investment and Strategy Research, Korea Institute of Science and Technology Information, Seoul, Republic of Korea.
This study reevaluates criticism of the Korean government's R&D investment strategy, which was considered an 'R&D cartel' and was cited as a reason for the Korean government's R&D cuts in 2023, through an advanced framework of quantum game theory. By modeling the interaction between the government and researchers as a quantum information strategy game, it redefines the dynamics of R&D investment as a quantum game involving two key players: the R&D manager (Alice) and the research performer (Bob). This quantum game, akin to the Prisoner's Dilemma but focused on responsibility and sincerity, allows for the exploration of strategic complexities and decision-making dynamics not possible in classical models.
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