January 2008, to be published in Physical Review A


Suppression of the heating effect in a geometric logic gating in a strong-driving-assisted cavity QED scheme
Chang-Yong Chen and Mang Feng

Heating effect, i.e., photon fluctuation, occurs in the geometric logic gating in cavity QED due to noisy environment. We propose an efficient scheme to suppress this heating by combining the displacement-like operator method [\textit{Phys. Rev. A} \textbf{73}, \textit{032344 (2006)}]\textit{ }with the method of double-Hamiltonian evolution [\textit{Phys. Rev. Lett. \textbf{90}, 217901 (2003)}]. Discussions about the fidelity and the success probability of the proposed scheme as well as the experimental feasibility are made in detail.

© 2008 The American Physical Society.