Dynamical localization, measurements and quantum computing

Details Dynamical localization, measurements and quantum computing Dynamical localization, measurements and quantum computing

2003-09-26

arxiv.org/abs/quant-ph/0309192v1

Phys. Rev. Lett. 92, 037902 (2004)

Physics

Quantum Physics

4 pages, 4 figures, research at Quantware MIPS Center http://www.quantware.ups-tlse.fr

Scientific paper

10.1103/PhysRevLett.92.037902

We study numerically the effects of measurements on dynamical localization in the kicked rotator model simulated on a quantum computer. Contrary to the previous studies, which showed that measurements induce a diffusive probability spreading, our results demonstrate that localization can be preserved for repeated single-qubit measurements. We detect a transition from a localized to a delocalized phase, depending on the system parameters and on the choice of the measured qubit.

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