Genuine multipartite correlations in Dicke superradiance

Autor(es)

Calegari, Susane ; Lourenco, Antonio C. ; Landi, Gabriel T. ; Duzzioni, Eduardo, I

• Tipo de documento: Artigo Científico
• Fonte: PHYSICAL REVIEW A; v. 101, n. 5, p. 7-pg., 2020-05-06.

Resumo

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)

• Processo FAPESP: 18/12813-0 - Termodinâmica quântica de sistemas bosônicos
• Beneficiário: Gabriel Teixeira Landi
• Modalidade de apoio: Auxílio à Pesquisa - Regular