Off-Diagonal-Long-Range-Order Versus Entanglement
Dagomir Kaszlikowski, Marcin Wiesniak
TL;DR
This paper explores the connection between off-diagonal long-range order in many-body quantum systems and quantum entanglement, suggesting a direct relationship between these fundamental concepts in quantum physics.
Contribution
It provides a conceptual analysis linking off-diagonal long-range order with entanglement, highlighting their fundamental relationship in quantum many-body systems.
Findings
Established a direct relation between off-diagonal long-range order and entanglement.
Provided insights into the fundamental nature of quantum correlations.
Connected historical concepts in quantum physics with modern entanglement theory.
Abstract
In this short note we discuss the relation between the so-called Off-Diagonal-Long-Range-Order in many-body interacting quantum systems introduced by C. N. Yang in Rev. Mod. Phys. {\bf 34}, 694 (1962) and entanglement. We argue that there is a direct relation between these two concepts.
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Taxonomy
TopicsQuantum and electron transport phenomena · Cold Atom Physics and Bose-Einstein Condensates · Quantum many-body systems