Physics – Quantum Physics
Scientific paper
2004-08-30
Physics
Quantum Physics
11 pages, 5 figures
Scientific paper
10.1016/j.physa.2005.01.026
We consider a new model of quantum walk on a one-dimensional momentum space that includes both discrete jumps and continuous drift. Its time evolution has two stages; a Markov diffusion followed by localized dynamics. As in the well known quantum kicked rotor, this model can be mapped into a localized one-dimensional Anderson model. For exceptional (rational) values of its scale parameter, the system exhibits resonant behavior and reduce to the usual discrete time quantum walk on the line.
Abal Gonzalo
Auyuanet Adriana
Donangelo Raul
Romanelli Alejandro
Siri R.
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