Steady entangled-state generation via cross-Kerr effect in a ferrimagnetic crystal
arXiv:2205.11865 · doi:10.1103/PhysRevA.106.012419
Abstract
For solid-state spin systems, the collective spin motion in a single crystal embodies multiple magnetostatic modes. Recently, it was found that the cross-Kerr interaction between the higher-order magnetostatic mode and the Kittel mode introduces a new operable degree of freedom. In this work, we propose a scheme to entangle two magnon modes via the cross-Kerr nonlinearity when the bias field is inhomogeneous and the system is driven. Quantum entanglement persists at the steady state, as demonstrated by numerical results using experimentally feasible parameters. Furthermore, we also demonstrate that entangled states can survive better in the system where self-Kerr and cross-Kerr nonlinearities coexist. Our work provides insights and guidance for designing experiments to observe entanglement between different degrees of freedom within a single ferrimagnetic crystal. Additionally, it may stimulate potential applications in quantum information processing using spintronic devices.
10 pages, 4 figures
References in corpus (20)
- Quantum Computing
- 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
- Entanglement in continuous variable systems: Recent advances and current perspectives
- Hybrid quantum systems based on magnonics
- Quantum magnonics: when magnon spintronics meets quantum information science
- High Cooperativity Cavity QED with Magnons at Microwave Frequencies
- Spin Pumping in Electrodynamically Coupled Magnon-Photon Systems
- A solid-state entangled photon pair source with high brightness and indistinguishability
- Observation of the exceptional point in cavity magnon-polaritons
- Magnon Kerr effect in a strongly coupled cavity-magnon system
- Emergence of atom-light-mirror entanglement inside an optical cavity
- Continuous variable tangle, monogamy inequality, and entanglement sharing in Gaussian states of continuous variable systems
- Exchange Magnon-Polaritons in Microwave Cavities
- Unconventional Singularity in Anti-Parity-Time Symmetric Cavity Magnonics
- Long-Time Memory and Ternary Logic Gate Using a Multistable Cavity Magnonic System
- Resources of nonlinear cavity magnonics for quantum information
- Remote magnon entanglement between two massive ferrimagnetic spheres via cavity optomagnonics
- Observation of magnon cross-Kerr effect in cavity magnonics
Cited by in corpus (9)
- Tutorial: Nonlinear magnonics
- Magnon squeezing by two-tone driving of a qubit in cavity-magnon-qubit systems
- Strong to ultra-strong coherent coupling measurements in a YIG/cavity system at room temperature
- Controllable magnon-induced transparency in a ferromagnetic material via cross- and self-Kerr effects
- Entanglement properties of photon-magnon crystal from nonlinear perspective
- Magnon and photon blockade in a hybrid antiferromagnet-cavity quantum system
- Second-order correlation and squeezing of photons in cavities with ultrastrong magnon-photon interactions
- Joint estimation of noise and nonlinearity in Kerr systems
- Cat-state-like non-Gaussian entanglement in magnon systems