Parrondo's effect in continuous-time quantum walks

التفاصيل البيبلوغرافية
العنوان: Parrondo's effect in continuous-time quantum walks
المؤلفون: Ximenes, J. J., Pires, M. A., Villas-Boas, J. M.
سنة النشر: 2023
المجموعة: Condensed Matter
Quantum Physics
مصطلحات موضوعية: Quantum Physics, Condensed Matter - Statistical Mechanics
الوصف: 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.
Comment: 6 pages, 6 figures
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevA.109.032417
URL الوصول: http://arxiv.org/abs/2311.04848
رقم الانضمام: edsarx.2311.04848
قاعدة البيانات: arXiv
الوصف
DOI:10.1103/PhysRevA.109.032417