Disorder and decoherence in coined quantum walks |
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| Authors: | Zhang Rong Qin Hao Tang Bao Xue Peng |
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| Affiliation: | [1]Department of Physics, Southeast University, Nanjing 211189, China [2]State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China |
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| Abstract: | This article aims to provide a review on quantum walks.Starting form a basic idea of discrete-time quantum walks,we will review the impact of disorder and decoherence on the properties of quantum walks.The evolution of the standard quantum walks is deterministic and disorder introduces randomness to the whole system and change interference pattern leading to the localization effect.Whereas,decoherence plays the role of transmitting quantum walks to classical random walks. |
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| Keywords: | quantum walk disorder decoherence |
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