Enhancement of antiferromagnetic magnon-magnon entanglement by cavity cooling
arXiv:1903.02484 · doi:10.1103/PhysRevB.101.014419
Abstract
Magnon-photon coupling has been experimentally realized inside a cavity and the emerging field known as cavity spintronics has attracted significant attention for its potential docking with quantum information science. However, one seldom knows whether this coupling implies an entanglement state among magnons and photons or not, which is crucial for its usage in quantum information. Here we study the entanglement properties among magnons and photons in an antiferromagnet-light system and find that the entanglement between magnon and photon is nearly zero while the magnon-magnon entanglement is very strong and it can be even further enhanced through the coupling with the cavity photons. The maximum enhancement occurs when the antiferromagnet reaches resonant with the light. The essential physics can be well understood within the picture of cavity induced cooling of magnon-magnon state near its joint vacuum with stronger entanglement. Our results are significant to extend the cavity spintronics to quantum manipulation and further provide an alternate to manipulate the deep strong correlations of continuous variable entanglement with a generic stable condition and easy tunability.
arXiv comment5 pages, 3 figures
References in corpus (51)
- Quantum information with continuous variables
- Antiferromagnetic spintronics
- Antiferromagnetic spintronics
- Optomechanical entanglement between a movable mirror and a cavity field
- Strongly coupled magnons and cavity microwave photons
- Hybridizing ferromagnetic magnons and microwave photons in the quantum limit
- High cooperativity in coupled microwave resonator ferrimagnetic insulator hybrids
- Entanglement in continuous variable systems: Recent advances and current perspectives
- Hybrid quantum systems based on magnonics
- Magnon-photon-phonon entanglement in cavity magnomechanics
- Electrically controlled long-distance spin transport through an antiferromagnetic insulator
- Bistability of Cavity Magnon Polaritons
- Spin Pumping in Electrodynamically Coupled Magnon-Photon Systems
- Reservoir-engineered entanglement in optomechanical systems
- Bidirectional conversion between microwave and light via ferromagnetic magnons
- A solid-state entangled photon pair source with high brightness and indistinguishability
- Spin pumping and spin-transfer torques in antiferromagnets
- Strong-field interactions between a nanomagnet and a photonic cavity
- Resolving magnon number states in quantum magnonics
- Robust entanglement of a micromechanical resonator with output optical fields
- Antiferromagnonic Spin Transport from YFeO into NiO
- Level Attraction Due to Dissipative Magnon-Photon Coupling
- Enhancement of Thermally Injected Spin Current through an Antiferromagnetic Insulator
- Quantum entanglement between two magnon modes via Kerr nonlinearity
- Entangling two magnon modes via magnetostrictive interaction
- Superfluid spin transport through antiferromagnetic insulators
- Experimental Signatures of Spin Superfluid Ground State in Canted Antiferromagnet Cr2O3 via Nonlocal Spin Transport
- Enhanced spin pumping efficiency in antiferromagnetic IrMn thin films around the magnetic phase transition
- Roadmap on STIRAP applications
- Conduction of spin currents through insulating oxides
- Antiferromagnetic Domain Wall Motion Induced by Spin Waves
- All entangled states are useful for channel discrimination
- Realization of Attractive Level Crossing via a Dissipative Mode
- Magnon squeezing in an antiferromagnet: reducing the spin noise below the standard quantum limit
- Antiferromagnetic magnons as highly squeezed Fock states underlying quantum correlations
- Tavis-Cummings model beyond the rotating wave approximation: Quasi-degenerate qubits
- Size-dependence of Strong-Coupling Between Nanomagnets and Photonic Cavities
- Tavis-Cummings model and collective multi-qubit entanglement in trapped ions
- EPR paradox and quantum steering in a three-mode optomechanical system
- Study of the cavity-magnon-polariton transmission line shape
- Entanglement Content of Quasi-Particle Excitations
- Strong coupling of microwave photons to antiferromagnetic fluctuations in an organic magnet
- Antiferromagnetic domain wall motion driven by polarized spin waves
- Approach to a Parity Deformed Jaynes-Cummings Model and the Maximally Entangled States
- Magnon-photon coupling in antiferromagnets
- Non-local coupling between antiferromagnets and ferromagnets in cavities
- Growing macroscopic superposition states via cavity quantum optomechanics
- Quasiparticle entanglement: redefinition of the vacuum and reduced density matrix approach
- Atomic antiferromagnetic domain wall propagation beyond the relativistic limit
- Thermodynamic Entanglement of Magnonic Condensates
- Engineering asymmetric steady-state Einstein-Podolsky-Rosen steering in macroscopic hybrid systems
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- Steady Bell state generation via magnon-photon coupling
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- Remote magnon entanglement between two massive ferrimagnetic spheres via cavity optomagnonics
- Einstein-Podolsky-Rosen entanglement and asymmetric steering between distant macroscopic mechanical and magnonic systems
- Tutorial: Nonlinear magnonics
- Macroscopic entanglement of two magnon modes via quantum correlated microwave fields
- Entanglement enhancement in cavity magnomechanics by an optical parametric amplifier
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- Magnon-magnon entanglement and its detection in a microwave cavity
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- Enhanced magnon spin current using the bosonic Klein paradox
- Pure dephasing of magnonic quantum states
- Hierarchy of magnon entanglement in antiferromagnets
- Recent progress in antiferromagnetic dynamics
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- Quantum Sensing of Antiferromagnetic Magnon Two-Mode Squeezed Vacuum
- Universal field dependence of magnetic resonance near zero frequency
- Quantum entanglement generation on magnons assisted with microwave cavities coupled to a superconducting qubit
- Magnon and photon blockade in a hybrid antiferromagnet-cavity quantum system
- Extreme renormalisations of dimer eigenmodes by strong light-matter coupling
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- Transmon probe for quantum characteristics of magnons in antiferromagnets
- Intersublattice entanglement entropy as an extensive property in antiferromagnets
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- Diverging entanglement of critical magnons in easy-axis antiferromagnets
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- Role of magnon-magnon interaction in optical excitation of coherent two-magnon modes
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- Driven-dissipative Quantum Dynamics in Cavity Magnon-Polariton System
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