Chinese Journal of Quantum Electronics

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The wave-particle duality of electron in one-dimensional random potential model with long-range hopping*

HUANG Xin1,FANG Hui1 ,HUO Yizhi1 ,GONG Longyan1,2   

  1. 1 Applied physics department, College of Science, Nanjing University of Posts and Telecommunications,Nanjing 210046,China; 2 New Energy Technology Engineering Laboratory of Jiangsu Province, Nanjing University of Posts and Telecommunications,Nanjing 210046,China
  • Published:2019-03-28 Online:2019-03-20

Abstract: The wave-particle duality is a basic concept in quantum mechanics and Anderson localization is an important phenomenon in condensed matter physics. Inspired by the wave-particle duality of photon in a two-arm interferometer, distinguishability D and visibility V are explored for an electron in one-dimensional random potential model with long-range hopping. We find that is less than, equal to, and greater than for delocalized, critical, and localized states, respectively. In this sense, the Anderson transition can be viewed as a transition from relatively more particle-like behavior to relatively more wavelike ones. This research gives a novel view to understand the wave-particle duality and Anderson localization.

Key words: quantum physics, wave-particle duality, direct diagonalization method, random potential model with long-range hopping