Journal of Physics B Atomic Molecular and Optical Physics

Strong-driving-assisted generation of two-mode nonclassical states and swap gate operation in trapped-ion cavity QED

Zheng Xiao-Juan, Mao-Fa Fang, Cai Jian-Wu, Shuai Cao, Xiang-Ping Liao

Published Nov 7, 2006• 4 citations

Abstract

We propose a simple and efficient scheme to generate a nonclassical state of a quantum system, which is composed of the one-dimension trapped-one motion and a single-cavity field mode. We also generate two-mode SU(2) Schr?dinger-cat states, entangled coherent states and squeezed cat states. In addition, we show that a quantum swap gate can be implemented if the vibration mode and cavity mode are used to represent separately a qubit. The distinct feature of the scheme is that it operates in the strong-excitation regime (? ?), which greatly enhances operation speed.

DOI: 10.1088/0953-4075/39/22/013

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