We introduce the double-Hamiltonian evolution technique approach to investigate the unconventionalgeometric quantum logical gate with dissipation under the model of many identical three-level atoms in a cavity, driven...We introduce the double-Hamiltonian evolution technique approach to investigate the unconventionalgeometric quantum logical gate with dissipation under the model of many identical three-level atoms in a cavity, drivenby a classical field.Our concrete calculation is made for the case of two atoms for the large-detuning interaction ofthe atoms with the cavity mode.The main advantage of our scheme is of eliminating the photon flutuation in thecavity mode during the gating.The corresponding analytical results will be helpful for experimental realization of speedgeometric quantum logical gate in real cavities.展开更多
基金Supported by the National Natural Science Foundation of China under Grant Nos.10774042,10774163,and 11074070the Natural Science Foundation of Hunan Province under Grant No.09JJ3121the Key Project of Science and Technology of Hunan Province under Grant No.2010FJ2005
文摘We introduce the double-Hamiltonian evolution technique approach to investigate the unconventionalgeometric quantum logical gate with dissipation under the model of many identical three-level atoms in a cavity, drivenby a classical field.Our concrete calculation is made for the case of two atoms for the large-detuning interaction ofthe atoms with the cavity mode.The main advantage of our scheme is of eliminating the photon flutuation in thecavity mode during the gating.The corresponding analytical results will be helpful for experimental realization of speedgeometric quantum logical gate in real cavities.
