Genuine multipartite correlations in Dicke Superradiance

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 non-trivial 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 (GMCs) 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. Non-trivial 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.

arXiv comment7 pages, 8 figures

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Cited by in corpus (7)

• Theoretical study of early time superradiance for atom clouds and arrays
• Genuine Multipartite Correlations in a Boundary Time Crystal
• Quantum coherence and speed limit in the mean-field Dicke model of superradiance
• Genuine Multipartite Correlations Distribution in the Criticality of Lipkin-Meshkov-Glick Model
• Genuine $k$-partite correlations and entanglement in the ground state of the Dicke model for interacting qubits
• Multipartite quantum correlations in a two-mode Dicke model
• Macroscopic theory of multipartite correlations in permutation-invariant open quantum systems