Parrondo's effect in continuous-time quantum walks

被引：4
|
作者：
Ximenes, J. J. [1 ]
Pires, M. A. [2 ]
Villas-Boas, J. M. [1 ]
机构：
[1] Univ Fed Uberlandia, Inst Fis, BR-38400902 Uberlandia, MG, Brazil
[2] Univ Fed Alagoas, BR-57480000 Delmiro Gouveia, Alagoas, Brazil
来源：
PHYSICAL REVIEW A | 2024年 / 109卷 / 03期
关键词：
GAMES;
D O I：
10.1103/PhysRevA.109.032417
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a manifestation of a Parrondo's effect in a continuous -time quantum walk (CTQW). In our protocol we consider a CTQW in the presence of a 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.
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页数：7
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