Abstract： A scheme is proposed for generating the superpositions of several coherent states in a cavity field with dispersive cavity quantum electrodynamics (QED). In the scheme, a sequence of atoms interact dispersively with the cavity field, connected with a microwave source, and is manipulated by classical fields, followed by state-selective measurements. In this way, the cavity field is collapsed onto a superposition of several coherent states along a straight line with controllable coefficients.This scheme provides the possibility for quantum state engineering via coherent-state superpositions in cavity QED for the first time.
ZHENG Shi-Biao. Quantum State Engineering by Superpositions of Coherent States
along a Straight Line in Cavity Quantum Electrodynamics
[J]. 中国物理快报, 2001, 18(8): 1072-1073.
ZHENG Shi-Biao. Quantum State Engineering by Superpositions of Coherent States
along a Straight Line in Cavity Quantum Electrodynamics
. Chin. Phys. Lett., 2001, 18(8): 1072-1073.
2001, Vol. 18 
