Scalable, chip-based optically-controlled gates for quantum information processing

Autor:	Burenkov, I. A., Tikhonova, O. V., Polyakov, S. V.
Rok vydání:	2016
Předmět:	Quantum Physics
Druh dokumentu:	Working Paper
DOI:	10.1088/1612-2011/13/12/125206
Popis:	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. Comment: 8 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1610.08082 Zobrazit plný text záznamu View this record from Arxiv