Implementation of Deutsch Algorithm Using Para-Hydrogen Induced Polarization

doi:10.11938/cjmr20150407

Abstract

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

CLC Number:

O482.53

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.

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