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

作者：Zheng, Xiao Juan; Fang, Mao Fa^*; Cai, Jian Wu; Cao, Shuai; Liao, Xiang Ping

来源：Journal of Physics B: Atomic, Molecular and Optical Physics , 2006, 39(22): 4701-4707.

DOI：10.1088/0953-4075/39/22/013

• Coherent states
• Quantum systems
• Schrodinger-cat states
• Single-cavity field mode

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) Schrodinger-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 (Omega >> v), which greatly enhances operation speed.

• 出版日期2006-11-28
• 单位中南大学; 湖南师范大学; 南宁师范大学