Chinese Journal of Magnetic Resonance >

2015 , Vol. 32 >Issue 4: 618 - 627

DOI: https://doi.org/10.11938/cjmr20150407

Implementation of Deutsch Algorithm Using Para-Hydrogen Induced Polarization

  • TIAN Jia-xin1 ,
  • LIU Wen-qing1 ,
  • SONG Yan-hong1 ,
  • XUAN Ya-nan1 ,
  • LI Jun-fang2* ,
  • YAO Ye-feng1* ,
  • WEI Da-xiu1*
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  • 1. Shanghai Key Laboratory of Magnetic Resonance, Department of Physics, East China Normal University, Shanghai 200062, China;
    2. Shanghai Institute of Organic Chemistry, Shanghai 200032, China
*Corresponding author： LI Jun-fang, Tel: +86-21-54925475, E-mail: junfangli@sioc.ac.cn; YAO Ye-feng, Tel: +86-21-62234328, E-mail: yfyao@phy.ecnu.edu.cn; WEI Da-xiu, Tel: +86-21-62233281, E-mail: dxwei@phy.ecnu.edu.cn.

Received date: 2015-03-02

  Revised date: 2015-11-03

  Online published: 2015-12-05

Supported by

国家自然科学基金资助项目(11005039)

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Abstract

The NMR system is one of the physical systems that can be used to realize quantum computation. However, NMR-based quantum computing could have many drawbacks with increasing qubit number. One of the underlying reasons is that the signal of pseudo-pure state decreases exponentially with increasing qubit number. Besides, the process required to prepare a pseudo-pure state becomes more complicated as the spin system gets larger. Furthermore, the pseudo-pure state in NMR system is in fact a mixed state, making it difficult to realize quantum entanglement. In this paper, we used parahydrogen induced polarization (PHIP) technique to prepare a genuine pure state for NMR quantum computation with significantly enhanced signal intensity. The initial state was applied to implement a two-qubit Deutsch-Jozsa algorithm and a three-qubit Deutsch-like algorithm.

Key words： nuclear magnetic resonance (NMR); parahydrogen induced polarization (PHIP); ALTADENA; PASADENA; Deutsch algorithm

Cite this article

TIAN Jia-xin1 , LIU Wen-qing1 , SONG Yan-hong1 , XUAN Ya-nan1 , LI Jun-fang2* , YAO Ye-feng1* , WEI Da-xiu1* . Implementation of Deutsch Algorithm Using Para-Hydrogen Induced Polarization
[J]. Chinese Journal of Magnetic Resonance, 2015 , 32(4) : 618 -627 . DOI: 10.11938/cjmr20150407

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