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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Genuine multipartite correlations in Dicke superradiance

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Author(s):
Calegari, Susane [1, 2] ; Lourenco, Antonio C. [1] ; Landi, Gabriel T. [3] ; Duzzioni, I, Eduardo
Total Authors: 4
Affiliation:
[1] I, Univ Fed Santa Catarina, Dept Fis, Florianoplis 88040900, SC - Brazil
[2] Polish Acad Sci, Ctr Theoret Phys, Al Lotnikow 32-46, Warsaw 02668 - Poland
[3] Univ Sao Paulo, Inst Fis, Sao Paulo 05314970, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Physical Review A; v. 101, n. 5 MAY 6 2020.
Web of Science Citations: 0
Abstract

A thorough understanding of the structure of correlations in multipartite systems is essential for the success of most quantum information processing applications. The problem, however, quickly becomes nontrivial as the size of the multipartition increases. With this motivation in mind, in this paper, we put forth a detailed study of genuine multipartite correlations in the Dicke model of superradiance. We compute all genuine k-partite correlations for Dicke states with arbitrary excitations and use these results to characterize the evolution of multipartite correlations during the superradiant dynamics. Nontrivial effects in the way correlations in Dicke states are distributed between the multiple parts are found, showing strong finite-size effects. We also employ the concept of weaving to classify how multipartite correlations scale with the number of particles in the system. (AU)

FAPESP's process: 18/12813-0 - Quantum thermodynamics of bosonic systems
Grantee:Gabriel Teixeira Landi
Support type: Regular Research Grants