科研之友
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摘要
We propose a method to simulate exactly quantum dynamics for finite-dimensional quantum systems and analyze its complexity. We apply this method to the exact simulation of any unitary using the dynamics of a time-varying discrete quantum walk on a graph. For this example, in the special case where the graph is a cycle, we show that the complexity grows like N log N, N being the number of vertices of the graph.
- 出版日期2012-1-20
