Implementation of a one-dimensional quantum walk in both position and phase spaces |
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Authors: | Qin Hao Xue Peng |
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Institution: | a Department of Physics, Southeast University, Nanjing 211189, China;
b State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China |
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Abstract: | Quantum walks have been investigated as they have remarkably different features in contrast to classical random walks. We present a quantum walk in a one-dimensional architecture, consisting of two coins and a walker whose evolution is in both position and phase spaces alternately controlled by the two coins respectively. By analyzing the dynamics evolution of the walker in both the position and phase spaces, we observe an influence on the quantum walk in one space from that in the other space, which behaves like decoherence. We propose an implementation of the two-coin quantum walk in both position and phase spaces via cavity quantum electrodynamics(QED). |
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Keywords: | quantum walks cavity quantum electrodynamics |
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