منابع مشابه
One-dimensional quantum walks with absorbing boundaries
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Abstract. This letter treats the quantum random walk on the line determined by a 2 × 2 unitary matrix U . A combinatorial expression for the mth moment of the quantum random walk is presented by using 4 matrices, P,Q,R and S given by U . The dependence of the mth moment on U and initial qubit state φ is clarified. A new type of limit theorems for the quantum walk is given. Furthermore necessary...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2015
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.91.052319