Scalable, chip-based optically-controlled gates for quantum information processing
Quantum Physics
2016-12-21 v1
Abstract
Here we present a simple and robust method to build on-the-fly configurable quantum gates based on a photonic exchange between quantum nodes. The idea is based on a high reflectivity of Bragg grating structures near resonant wavelengths. The control is exerted by applying an external strongly off-resonant or even a static electromagnetic field and taking advantage of the Kerr effect. When the nonlinear phase shift is strong enough, the Bragg mirror disappears, thereby allowing a transmission of a wave packet from one node to another. An example of a protocol for quantum logic gates that relies on this framework is offered.
Cite
@article{arxiv.1610.08082,
title = {Scalable, chip-based optically-controlled gates for quantum information processing},
author = {I. A. Burenkov and O. V. Tikhonova and S. V. Polyakov},
journal= {arXiv preprint arXiv:1610.08082},
year = {2016}
}
Comments
8 pages, 5 figures