Opportunities for long-range magnon-mediated entanglement of spin qubits via on- and off-resonant coupling

Abstract

The ability to manipulate entanglement between multiple spatially-separated qubits is essential for quantum information processing. Although nitrogen-vacancy (NV) centers in diamond provide a promising qubit platform, developing scalable two-qubit gates remains a well-known challenge. To this end, magnon-mediated entanglement proposals have attracted attention due to their long-range spin-coherent propagation. Optimal device geometries and gate protocols of such schemes, however, have yet to be determined. Here we predict strong long-distance ($>\mu$m) NV-NV coupling via magnon modes with cooperativities exceeding unity in ferromagnetic bar and waveguide structures. Moreover, we explore and compare on-resonant transduction and off-resonant virtual-magnon exchange protocols, and discuss their suitability for generating or manipulating entangled states at low temperatures ($T\lesssim 150$ mK) under realistic experimental conditions. This work will guide future experiments that aim to entangle spin qubits in solids with magnon excitations.

arXiv commentPRX Quantum in press, 10 pages, 5 figures

References in corpus (67)

• A computable measure of entanglement
• Quantum sensing
• Cavity quantum electrodynamics for superconducting electrical circuits: an architecture for quantum computation
• Experimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km
• Laser cooling of a nanomechanical oscillator into its quantum ground state
• High-sensitivity diamond magnetometer with nanoscale resolution
• Decoherence Free Subspaces for Quantum Computation
• Sensing electric fields using single diamond spins
• Heralded entanglement between solid-state qubits separated by 3 meters
• Quantum Theory of Cavity-Assisted Sideband Cooling of Mechanical Motion
• Hybridizing ferromagnetic magnons and microwave photons in the quantum limit
• Theory of ground state cooling of a mechanical oscillator using dynamical back-action
• Solid-state electronic spin coherence time approaching one second
• Observation of coherent oscillation of a single nuclear spin and realization of a two-qubit conditional quantum gate
• A simple formula for the average gate fidelity of a quantum dynamical operation
• Realization of a multi-node quantum network of remote solid-state qubits
• Coherent quantum state storage and transfer between two phase qubits via a resonant cavity
• Probing condensed matter physics with magnetometry based on nitrogen-vacancy centres in diamond
• Room temperature coherent control of coupled single spins in solid
• Unconditional quantum teleportation between distant solid-state qubits
• Schrieffer-Wolff transformation for quantum many-body systems
• Deterministic delivery of remote entanglement on a quantum network
• Room temperature entanglement between distant single spins in diamond
• Scalable quantum register based on coupled electron spins in a room temperature solid
• Entanglement-based single-shot detection of a single magnon with a superconducting qubit
• Mach-Zehnder Interferometry in a Strongly Driven Superconducting Qubit
• Topological chiral magnonic edge mode in a magnonic crystal
• Decoherence-protected quantum gates for a hybrid solid-state spin register
• Resolved sidebands in a strain-coupled hybrid spin-oscillator system
• Photon-mediated interactions between quantum emitters in a diamond nanocavity
• Chip-scale nanofabrication of single spins and spin arrays in diamond
• Engineering shallow spins in diamond with nitrogen delta-doping
• Control and Local Measurement of the Spin Chemical Potential in a Magnetic Insulator
• Polarization and readout of coupled single spins in diamond
• Quantum interference of single photons from remote nitrogen-vacancy centers in diamond
• Nanometre-scale probing of spin waves using single electron spins
• Hybrid quantum device with nitrogen-vacancy centers in diamond coupled to carbon nanotubes
• Phonon networks with SiV centers in diamond waveguides
• Imaging the local charge environment of nitrogen-vacancy centers in diamond
• Enhancing cavity QED via anti-squeezing: synthetic ultra-strong coupling
• Hybrid nanodiamond-YIG systems for efficient quantum information processing and nanoscale sensing
• Phonon Cooling and Lasing with Nitrogen-Vacancy Centers in Diamond
• All-optical control of the silicon-vacancy spin in diamond at millikelvin temperatures
• Optical cooling of magnons
• Spin pinning and spin-wave dispersion in nanoscopic ferromagnetic waveguides
• Increased low-temperature damping in yttrium iron garnet thin films
• Robust quantum-network memory using decoherence-protected subspaces of nuclear spins
• Floquet Cavity Electromagnonics
• Entanglement estimation from Bell inequality violation
• Long-Range Interaction of Spin-Qubits via Ferromagnets
• Hybrid quantum device based on NV centers in diamond nanomechanical resonators plus superconducting waveguide cavities
• Nanomagnonic cavities for strong spin-magnon coupling
• Off-Resonant Manipulation of Spins in Diamond via Precessing Magnetization of a Proximal Ferromagnet
• Optimized cavity-mediated dispersive two-qubit gates between spin qubits
• Microwave magnon damping in YIG films at millikelvin temperatures
• Quantum-impurity relaxometry of magnetization dynamics
• Tuning entanglement by squeezing magnons in anisotropic magnets
• Cooling a Mechanical Resonator with a Nitrogen-Vacancy Center Ensemble Using a Room Temperature Excited State Spin-Strain Interaction
• Predicted strong coupling of solid-state spins via a single magnon mode
• Fast dynamical decoupling of the Molmer-Sorensen entangling gate
• Hybrid quantum system with nitrogen-vacancy centers in diamond coupled to surface phonon polaritons in piezomagnetic superlattices
• Entangling Distant Spin qubits via a Magnetic Domain Wall
• Sensing chiral magnetic noise via quantum impurity relaxometry
• Spatially resolved detection of complex ferromagnetic dynamics using optically detected NV spins
• Magnetic Resonance in Defect Spins mediated by Spin Waves
• Spin thermometry and spin relaxation of optically detected Cr3+ ions in ruby Al2O3
• Noise-resilient architecture of a hybrid electron-nuclear quantum register in diamond

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• Roadmap on Spin-Wave Computing
• Cavity Magnonics
• Remote Charging and Degradation Suppression for the Quantum Battery
• Strong Long-Range Spin-Spin Coupling via a Kerr Magnon Interface
• Enhanced tripartite interactions in spin-magnon-mechanical hybrid systems
• Perspective: non-Hermitian physics in magnetic systems
• Diamond Integrated Quantum Photonics: A Review
• Tunable and Transferable Diamond Membranes for Integrated Quantum Technologies
• Bell-state generation for spin qubits via dissipative coupling
• Skyrmion Qubits: Challenges For Future Quantum Computing Applications
• Blueprint of a Molecular Spin Quantum Processor
• Magnon-mediated qubit coupling determined via dissipation measurements
• Magnon-Skyrmion Hybrid Quantum Systems: Tailoring Interactions via Magnons
• Optomechanical-interface-induced strong spin-magnon coupling
• Quantum computing on magnetic racetracks with flying domain wall qubits
• Towards a quantum interface between spin waves and paramagnetic spin baths
• High-fidelity spin qubit shuttling via large spin-orbit interaction
• Correlation-enhanced interaction of a Bose-Einstein condensate with parametric magnon pairs and virtual magnons
• Kerr nonlinearity induced strong spin-magnon coupling
• Electric-Field-Induced Coherent Control of Nitrogen Vacancy Centers
• Fixing the rotating-wave approximation for strongly-detuned quantum oscillators
• Lattice-tunable substituted iron garnets for low-temperature magnonics
• Theory of spin center sensing of diffusion
• Interplay between charge and spin noise in the near-surface theory of decoherence and relaxation of $C_{3v}$ symmetry qutrit spin-1 centers
• Solid-state platform for cooperative quantum dynamics driven by correlated emission
• Acoustic Frequency Multiplication and Pure Second Harmonic Generation of Phonons by Magnetic Transducers
• Relaxation of a single defect spin by the low-frequency gyrotropic mode of a magnetic vortex
• High-Fidelity Entangling Gates for Electron and Nuclear Spin Qubits in Diamond
• Bose-Einstein condensation in systems with flux equilibrium
• Effect of Substrate on Spin-Wave Propagation Properties in Ferrimagnetic Thulium Iron Garnet Thin Films
• Topological Spin Textures Enabling Quantum Transmission
• Local ferromagnetic resonance measurements of mesoscopically patterned ferromagnets using deterministically placed nanodiamonds
• Classical and quantum theory of magnonic and magnetoelastic nonlinear dynamics in continuum geometries
• Flying-cat parity checks for quantum error correction
• Flux channeling induced nano-confinement and enhancement of microwaves imaged by Rabi oscillation mapping
• Genuine $k$-partite correlations and entanglement in the ground state of the Dicke model for interacting qubits
• Quantum simulation of spin-1/2 XYZ model using solid-state spin centers
• Steady-state entanglement of spin qubits mediated by nonreciprocal and chiral magnons
• Harnessing spin-qubit decoherence to probe strongly-interacting quantum systems
• Engineering long-lived entanglement through dissipation in quantum hybrid solid-state platforms
• Crystal fields, exchange, and dipolar interactions and noncollinear magnons of erbium oxide
• Suppression of coherent errors during entangling operations in NV centers in diamond
• Long-distance coupling of spin qubits via topological magnons
• Loop-gap resonators achieving strong magnon-photon coupling in magnetic insulator thin films
• Tunable anisotropic quantum Rabi model via a magnon--spin-qubit ensemble