TY - JOUR
T1 - Realization of quantum process tomography in NMR
JF - Physical Review A
Y1 - 2001
A1 - Andrew M. Childs
A1 - Isaac L. Chuang
A1 - Debbie W. Leung
AB - Quantum process tomography is a procedure by which the unknown dynamical evolution of an open quantum system can be fully experimentally characterized. We demonstrate explicitly how this procedure can be implemented with a nuclear magnetic resonance quantum computer. This allows us to measure the fidelity of a controlled-not logic gate and to experimentally investigate the error model for our computer. Based on the latter analysis, we test an important assumption underlying nearly all models of quantum error correction, the independence of errors on different qubits.
VL - 64
UR - http://arxiv.org/abs/quant-ph/0012032v1
CP - 1
J1 - Phys. Rev. A
U5 - 10.1103/PhysRevA.64.012314
ER -