摘要
The four-body interaction plays an important role in many-body systems, and it can exhibit interesting phase transition behaviors. In this letter, we report the experimental demonstration of a four-body interaction in a four-qubit nuclear magnetic resonance quantum information processor. The strongly modulating pulse is used to implement spin selective excitation. The results show a good agreement between theory and experiment.
The four-body interaction plays an important role in many-body systems, and it can exhibit interesting phase transition behaviors. In this letter, we report the experimental demonstration of a four-body interaction in a four-qubit nuclear magnetic resonance quantum information processor. The strongly modulating pulse is used to implement spin selective excitation. The results show a good agreement between theory and experiment.
基金
Supported by the National Natural Science Foundation of China (Grant Nos. 10775076, 10874098)
National Basic Research Program of China (Grant Nos. 2006CB921106, 2009CB929402)
Specialized Research Fund for the Doctoral Program of Education Ministry of China (Grant No. 20060003048)
