Chiral single-photon switch-assisted quantum logic gate with a nitrogen-vacancy center in a hybrid system
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2021-01-19 |
| Journal | Photonics Research |
| Authors | Yuan Zhou, DongāYan LĆ¼, Wei-You Zeng |
| Institutions | Hubei University of Automotive Technology |
| Citations | 20 |
Abstract
Section titled āAbstractāWe propose what we believe is a novel proposal for realizing a quantum C-NOT logic gate, through fabricating an interesting hybrid device with a chiral photon-pulse switch, a single nitrogen-vacancy (NV) center, and an optical microcavity. Three major different practical routes on realizing a chiral photon emitter are discussed, which can implement a chiral control unit via the nonreciprocal emitter-photon interactions, so-called āpropagation-direction-dependentā emission. With the assistance of dichromatic microwave driving fields, we carry out the relevant C-NOT operations by engineering the interactions on a single NV spin in a cavity. We note that this logic gate is robust against practical noise and experimental imperfection, and this attempt may evoke wide and fruitful applications in quantum information processing.