2024/09/21 by Hamza Harraf, Harraf, Hamza, Noura Chabar +5 · 1 citation
Computer Science · Engineering · #FOS: Physical sciences #Human Motion and Animation #Image Processing and 3D Reconstruction #Quantum Physics (quant-ph) #Simulation and Modeling Applications
paper · pdf · doi:10.48550/arxiv.2409.14139
openalex publication_date 2024/09/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this work, we propose a theoretical scheme to explore the enhancement of quantum correlation hierarchies in a cavity magnonmechanical system via the coherent feedback tool. We use Gaussian geometric discord to quantify quantum correlations between the two magnon modes, including those beyond entanglement, in the steady state. Logarithmic negativity and Gaussian quantum steering are employed to characterize entanglement and steerability, respectively. Our results show that adjusting the beam splitter's reflective parameter can significantly enhance quantum correlations and increase their resilience to thermal noise. Moreover, we demonstrate that coherent feedback can achieve enhanced genuine tripartite entanglement among the photon, magnon \(M1\), and phonon. These findings present promising strategies for enhancing entanglement in magnon-based systems and advancing quantum information technologies. We conclude by validating the system and demonstrating its ability to detect entanglement.