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Entanglement enhanced by Kerr nonlinearity in a cavity-optomagnonics system
- Source :
- Optics express. 28(21)
- Publication Year :
- 2020
-
Abstract
- We present a method to enhance steady-state bipartite and tripartite entanglement in a cavity-optomagnonics system by utilizing the Kerr nonlinearity originating from the magnetocrystalline anisotropy. The system comprises two microwave cavities and a magnon and represents the collective motion of several spins in a macroscopic ferrimagnet. We prove that Kerr nonlinearity is reliable for the enhancement of entanglement and produces a small frequency shift in the optimal detuning. Our system is more robust against the environment-induced decoherence than traditional optomechanical systems. Finally, we briefly analyze the validity of the system and demonstrate its feasibility for detecting the generated entanglement.
- Subjects :
- Physics
Quantum decoherence
Spins
business.industry
Magnon
Physics::Optics
Quantum Physics
02 engineering and technology
Quantum entanglement
Quantum key distribution
021001 nanoscience & nanotechnology
Magnetocrystalline anisotropy
01 natural sciences
Atomic and Molecular Physics, and Optics
Magnetic field
010309 optics
Optics
Quantum mechanics
0103 physical sciences
0210 nano-technology
business
Optomechanics
Subjects
Details
- ISSN :
- 10944087
- Volume :
- 28
- Issue :
- 21
- Database :
- OpenAIRE
- Journal :
- Optics express
- Accession number :
- edsair.doi.dedup.....033b7ebce500089686a0ede46314d064