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- Title
Genuine magnon–photon–magnon tripartite entanglement in a cavity electromagnonical system based on squeezed-reservoir engineering.
- Authors
Zheng, Qianjun; Zhong, Wenxue; Cheng, Guangling; Chen, Aixi
- Abstract
Here we investigate the genuine tripartite entanglement among one photon and two magnons in a cavity electromagnonical system, where two yttrium iron garnet (YIG) spheres are placed in a microwave cavity damped by a squeezed reservoir. In the presence of squeezing, the steady-state bipartite entanglements between photon and magnon and between two magnons are simultaneously existent, and the entanglement degrees are controllable with the different parameters. Moreover, the magnon–photon–magnon tripartite entanglement can be achieved and such a system is in a genuinely tripartite entangled state. The responsible mechanism is that the quantum correlation of squeezed light with the cavity is transferred to cavity mode and two magnon modes via the interaction between one cavity mode and two magnon modes. Our scheme provides an alternative way to manipulate the controllable and robust multipartite entanglement in hybrid quantum systems.
- Subjects
MAGNONS; YTTRIUM iron garnet; QUANTUM correlations; SQUEEZED light; CAVITY resonators; ENGINEERING
- Publication
Quantum Information Processing, 2023, Vol 22, Issue 3, p1
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-023-03880-y