Parrondo's paradox in quantum walks with time-dependent coin operators.

Pires, Marcelo A; Queirós, Sílvio M Duarte · Phys Rev E · 2020

basic_science · Level V

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Abstract

We show that a Parrondo paradox can emerge in two-state quantum walks without resorting to experimentally intricate high-dimensional coins. To achieve such goal we employ a time-dependent coin operator without breaking the translation spatial invariance of the system.