2004/09/20 by D. ben-Avraham, E. Bollt, C. Tamon
Physics and Astronomy · #cond-mat.other #quant-ph
published as Quantum Information Processing 3, 295-308 (2004) · 10 pages, 4 figures, to appear in Quantum Information Processing
arxiv created 2004/09/20 · arxiv updated 2009/12/01
We survey the equations of continuous-time quantum walks on simple one-dimensional lattices, which include the finite and infinite lines and the finite cycle, and compare them with the classical continuous-time Markov chains. The focus of our expository article is on analyzing these processes using the Laplace transform on the stochastic recurrences. The resulting time evolution equations, classical versus quantum, are strikingly similar in form, although dissimilar in behavior. We also provide comparisons with analyses performed using spectral methods.