Interfacing a Topological Qubit with a Spin Qubit in a Hybrid Quantum System
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2019-04-09 |
| Journal | Physical Review Applied |
| Authors | Bo Li, Fuli Li, Yuan Zhou, Jie Liu, Hong-Rong Li |
| Institutions | Xiāan Jiaotong University, Purdue University West Lafayette |
| Citations | 26 |
Abstract
Section titled āAbstractāResearch into hybrid quantum systems featuring both conventional and topological qubits is of keen interest for quantum information processing, and a key challenge is to realize a coherent interface between such qubits of different nature. The authors find that a topological qubit can be interfaced to a single nitrogen-vacancy center via a magnetized torsional cantilever. Topology-torsion couplings are induced by the magneto-Josephson effect, while spin-torsion couplings are realized by the exquisite preparation of dressed spin states. These coherent interactions can reach the strong-coupling regime, and enable a mechanically-dark-state protocol for quantum state conversion.