Parrondo's paradox in quantum walks with deterministic aperiodic sequence of coins.

Autor: Walczak Z; Department of Theoretical Physics, Faculty of Physics and Applied Informatics, University of Lodz, Pomorska 149/153, 90-236 Lodz, Poland., Bauer JH; Department of Theoretical Physics, Faculty of Physics and Applied Informatics, University of Lodz, Pomorska 149/153, 90-236 Lodz, Poland.
Jazyk: angličtina
Zdroj: Physical review. E [Phys Rev E] 2021 Dec; Vol. 104 (6-1), pp. 064209.
DOI: 10.1103/PhysRevE.104.064209
Abstrakt: Parrondo's effect is a well-known apparent paradox where a combination of biased random walks displays a counterintuitive reversal of the bias direction. We show that Parrondo's effect can occur not only in the case of one-dimensional discrete quantum walks with random or deterministic periodic sequence of two- or multistate quantum coins but also in the case of one-dimensional discrete quantum walks with deterministic aperiodic sequence of two-state quantum coins. Moreover, we show how Parrondo's effect affects the time evolution of the walker-coin quantum entanglement.
Databáze: MEDLINE