supprt from National Science Foundation of China (Nos.21033008,21073169,21103157);National Basic Research Program of China(No.2010CB923300 and No.2011CB921400);Fundamental Research Funds for the Central Universities of China (No.2340000034);Innovation Funds for Young Researchers of USTC(No.2340000025);Hong Kong UGC(No.AoE/P-04/08-2)
Quantum decoherence behavior is observed and studied on a 2 qubit NMR quantum computer. Experimental results show a good agreement between theory and experiment. The scheme can be generalized to the case that the envi...