Genuine k-partite correlations and entanglement in the ground state of the Dicke model for interacting qubits

Antônio C Lourenço; Denis R Candido; Eduardo I Duzzioni

doi:10.48550/arxiv.2405.12916

Back

Genuine k-partite correlations and entanglement in the ground state of the Dicke model for interacting qubits

Preprint

Open access

Genuine k-partite correlations and entanglement in the ground state of the Dicke model for interacting qubits

Antônio C Lourenço, Denis R Candido and Eduardo I Duzzioni

ArXiv.org

Cornell University

05/21/2024

DOI: 10.48550/arxiv.2405.12916

Files and links (1)

url

https://doi.org/10.48550/arxiv.2405.12916View

Preprint (Author's original)This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

The analysis of correlations among subsystems is essential for both the understanding of critical phenomena and for performing quantum information tasks. However, the majority of correlation measures are restricted to bipartitions due to the inherent challenges associated with handling multiple partitions and subsystems. To address this, we investigate Genuine Multipartite Correlations (GMC) of the Dicke model with interacting qubits. This method allows for the precise quantification of correlations within each subpart of the system, as well as for the percentage contribution of each GMC of order k. Most importantly, we show that GMC signal both first- and second-order quantum phase transitions present in the model. Furthermore, we employ Quantum Fisher Information (QFI) to detect genuine multipartite entanglement, since the GMC encompass both classical and quantum correlations. Ultimately, we compare the Dicke model with interacting qubits to spin-centers in solids interacting with a quantum field of magnons to demonstrate a potential experimental realization of this generalized Dicke model.

Physics - Quantum Physics

Details

Title: Subtitle: Genuine k-partite correlations and entanglement in the ground state of the Dicke model for interacting qubits
Creators: Antônio C Lourenço - Universidade Federal de Santa Catarina
Denis R Candido - University of Iowa
Eduardo I Duzzioni - Universidade Federal de Santa Catarina
Resource Type: Preprint
Publication Details: ArXiv.org
DOI: 10.48550/arxiv.2405.12916
ISSN: 2331-8422
Publisher: Cornell University; Ithaca, New York
Language: English
Date posted: 05/21/2024
Academic Unit: Physics and Astronomy
Record Identifier: 9984628051202771

Metrics

10 Record Views