Preparing Pseudo-Pure States in a Quadrupolar Spin System Using Optimal Control

doi:10.1088/0256-307X/29/12/127601

Chin. Phys. Lett.

2012, Vol. 29

Issue (12): 127601 DOI: 10.1088/0256-307X/29/12/127601

CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES

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-Hua^1**, DU Jiang-Feng^1,2

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

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TAN Yi-Peng, NIE Xin-Fang, LI Jun et al 2012 Chin. Phys. Lett. 29 127601

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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.

Received: 23 August 2012 Published: 04 March 2013

PACS:	76.60.-k	(Nuclear magnetic resonance and relaxation)
	76.60.Gv	(Quadrupole resonance)
	03.67.Lx	(Quantum computation architectures and implementations)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/29/12/127601 OR https://cpl.iphy.ac.cn/Y2012/V29/I12/127601

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	TAN Yi-Peng
	NIE Xin-Fang
	LI Jun
	CHEN Hong-Wei
	ZHOU Xian-Yi
	PENG Xin-Hua
	DU Jiang-Feng

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