Quantum synchronization and entanglement of two magnon modes in a magnomechanical system

• URL: http://arxiv.org/abs/2504.16253v1
• Date: Tue, 22 Apr 2025 20:29:19 GMT
• Title: Quantum synchronization and entanglement of two magnon modes in a magnomechanical system
• Authors: Hamza Harraf, Mohamed Amazioug, Rachid Ahl Laamara,
• Abstract summary: We investigate theoretically the improvement of the entanglement between the indirectly coupled two magnon modes in a magnomechanical system.<n>We show a significant enhancement of entanglement via magnon squeezing.<n>We show that with an increasing photon tunneling rate, entanglement is robust and resistant to thermal effects.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We investigate theoretically the improvement of the entanglement between the indirectly coupled two magnon modes in a magnomechanical system with magnon squeezing. We quantify the degree of entanglement via logarithmic negativity between two magnon modes. We show a significant enhancement of entanglement via magnon squeezing. Additionally, the entanglement of two magnons decreases monotonically under thermal effects. We demonstrate that with an increasing photon tunneling rate, entanglement is robust and resistant to thermal effects. We use purity as a witness to the mixing between the two magnon modes. We show that synchronization and purity are very robust against thermal effects rather than entanglement. We examine the relationship between quantum entanglement, purity, and quantum synchronization in both steady and dynamic states. According to our results, this scheme could be a promising platform for studying macroscopic quantum phenomena.

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