Effect of Quantum Coins on Two-Particle Quantum Walks
GAN Shu** , HE Xing-Dao, LIU Bin, FENG Cui-Di
Key Laboratory of Nondestructive Test (Ministry of Education), Nanchang Hangkong University, Nanchang 330063
Abstract ：We numerically study the effect of the quantum coins on the two-particle quantum walks on an infinite line. Both non-interacting and interacting particles are considered. The joint probability as well as the bunching or anti-bunching behavior are greatly affected by the phase factors in the coin operation. Further, the spatial correlation can be maximized by choosing appropriate coin parameters. The entanglement between the two particles can be adjusted in the same manner.
收稿日期: 2015-02-06
出版日期: 2015-09-02
:
03.67.Bg
(Entanglement production and manipulation)
05.30.-d
(Quantum statistical mechanics)
05.40.Fb
(Random walks and Levy flights)
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2015, Vol. 32 
