Scalable nuclear-spin entanglement mediated by a mechanical oscillator
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2018-10-03 |
| Journal | Physical review. B./Physical review. B |
| Authors | Puhao Cao, Ralf Betzholz, Jianming Cai |
| Institutions | Huazhong University of Science and Technology |
| Citations | 8 |
Abstract
Section titled āAbstractāWe propose a solid-state hybrid platform based on an array of implanted\nnitrogen-vacancy (NV) centers in diamond magnetically coupled to a mechanical\noscillator. The mechanical oscillator and the NV electronic spins both act as a\nquantum bus and allow us to induce an effective long-range interaction between\ndistant nuclear spins, relaxing the requirements on their spatial distance. The\ncoherent nuclear spin-spin interaction, having the form of an Ising model, can\nbe maintained in the presence of mechanical damping and spin dephasing via a\npulsed dynamical decoupling of the nuclear spins in addition to the microwave\ndriving field of the electronic spins. The present hybrid platform provides a\nscalable way to prepare multipartite entanglement among nuclear spins with long\ncoherence times and can be applied to generate graph states that may be used\nfor universal quantum computing.\n