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Quantum Physics
Title: Parrondo's effect in continuous-time quantum walks
(Submitted on 8 Nov 2023)
Abstract: We present the first manifestation of a Parrondo's effect in a continuous-time quantum walk (CTQW). In our protocol we consider a CTQW in the presence of time-dependent transition defect. Our results show that the alternation between defects, that individually are detrimental to the wavepacket spreading, can paradoxically enhance overall wavepacket propagation. Our findings pave the way for the exploration of unconventional mechanisms that can potentially harness the adverse effects of defects to enhance quantum transport.
Submission history
From: Jefferson José Ximenes [view email][v1] Wed, 8 Nov 2023 17:34:35 GMT (1239kb,D)
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