Speed Geometric Quantum Logical Gate Based on Double-Hamiltonian Evolution under Large-Detuning Cavity QED Model

We introduce the double-Hamiltonian evolution technique approach to investigate the unconventional geometric quantum logical gate with dissipation under the model of many identical three-level atoms in a cavity~ driven by a classical fieM. Our concrete calculation is made for the case of two atoms f...

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Bibliographic Details
Published in:Communications in theoretical physics 2010-10, Vol.54 (10), p.672-674
Main Author: 陈昌永 刘宗良 康帅 李韶华
Format: Article
Language:English
Subjects:
哈密顿
大失谐相互作用
实验实现
腔QED
量子逻辑门
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Summary:We introduce the double-Hamiltonian evolution technique approach to investigate the unconventional geometric quantum logical gate with dissipation under the model of many identical three-level atoms in a cavity~ driven by a classical fieM. Our concrete calculation is made for the case of two atoms for the large-detuning interaction of the atoms with the cavity mode. The main advantage of our scheme is of eliminating the photon flutuation in the cavity mode during the gating. The corresponding analytical results will be helpful for experimental realization of speed geometric quantum logical gate in real cavities.
ISSN:0253-6102
DOI:10.1088/0253-6102/54/4/18