Year: 2019
Type: article
Abstract: Entanglement is a special feature of the quantum world that reflects the existence of subtle, often non-local, correlations between local degrees of freedom. In topological theories such non-local correlations can be given a very intuitive interpretation: quantum entanglement of subsystems means that there are “strings” connecting them. More generally, an entangled state, or similarly, the density matrix of a mixed state, can be represented by cobordisms of topological spaces. Using a formal mathematical definition of TQFT we construct basic examples of entangled states and compute their von Neumann entropy.
Source: Journal of High Energy Physics
Authors: D. Melnikov, A. Mironov, S. Mironov, A. Morozov, An. Morozov
Institutions: Universidade Federal do Rio Grande do Norte, Institute for Theoretical and Experimental Physics, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, Institute for Information Transmission Problems, Russian Academy of Sciences, Moscow Institute of Physics and Technology, Institute for Nuclear Research
Language: English
Topic: Quantum many-body systems
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
Funder: Russian Science Foundation
Award: G4379787547
OpenAlex ID: W2892355911