Parrondo's paradox in quantum walks with three coins.
basic_science · Level V
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- Record sourced from PubMed, PMID 35854503.
- Also identified by DOI 10.1103/PhysRevE.105.064211.
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Abstract
Parrondo's paradox refers to the apparently paradoxical effect whereby a certain combination of biased random walks displays a counterintuitive reversal of the bias direction. We show that Parrondo's paradox can occur not only in the case of one-dimensional discrete-time quantum walks with a deterministic sequence of two quantum coins but also in the case of one-dimensional discrete-time quantum walks with a deterministic sequence of three quantum coins. Moreover, we show how Parrondo's paradox affects the time evolution of quantum entanglement for such quantum walks.