@article{TEXTUAL,
      recid = {11505},
      author = {Fukami, Masaya and Candido, Denis R. and Awschalom, David  D. and Flatté, Michael E.},
      title = {Opportunities for Long-Range Magnon-Mediated Entanglement  of Spin Qubits via On- And Off-Resonant Coupling},
      journal = {PRX Quantum},
      address = {2021-10-21},
      number = {TEXTUAL},
      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 (>μm)  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 150mK)  under realistic experimental conditions. This work will  guide future experiments that aim to entangle spin qubits  in solids with magnon excitations.},
      url = {http://knowledge.uchicago.edu/record/11505},
}