Multi-qubit quantum phase gates based on surface plasmons of a nanosphere
arXiv:1502.03185 · doi:10.1364/JOSAB.31.000229
Abstract
The Dicke subradiance and superradiance resulting from the interaction between surface plasmons of a nanosphere and an ensemble of quantum emitters have been investigated using a Green function approach. Based on such an investigation, we propose a scheme for a deterministic multiqubit quantum phase gate. As an example, twoqubit, threequbit, and fourqubit quantum phase gates have been designed and analyzed in detail. Phenomena due to the losses in the metal are discussed. Potential applications of these phenomena to quantuminformation processing are anticipated.
arXiv admin note: text overlap with arXiv:1002.1419 by other authors