Preparing Pseudo-Pure States in a Quadrupolar Spin System Using Optimal Control
TAN Yi-Peng1, NIE Xin-Fang2, LI Jun1, CHEN Hong-Wei3, ZHOU Xian-Yi1, PENG Xin-Hua1**, DU Jiang-Feng1,2
1Department of Modern Physics, University of Science and Technology of China, Hefei 230026 2Hefei National Laboratory for Physical Sciences at Microscale, Hefei 230026 3High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031
Abstract：Pseudo-pure state (PPS) preparation is crucial in nuclear magnetic resonance quantum computation. There have been some methods in spin-1/2 systems and a few attempts in quadrupolar spin systems. As optimal control via gradient ascent pulses engineering (GRAPE) has been widely used in quantum information science, we apply this technique to PPS preparation in quadrupolar spin systems. This approach shows an effective and fast quantum control method for both the state preparation and the realization of quantum gates in quadrupolar systems.
(Quantum computation architectures and implementations)
引用本文:
. [J]. Chin. Phys. Lett., 2012, 29(12): 127601-127601.
TAN Yi-Peng, NIE Xin-Fang, LI Jun, CHEN Hong-Wei, ZHOU Xian-Yi, PENG Xin-Hua, DU Jiang-Feng. Preparing Pseudo-Pure States in a Quadrupolar Spin System Using Optimal Control. Chin. Phys. Lett., 2012, 29(12): 127601-127601.
2012, Vol. 29 
