Resonant-tunneling in discrete-time quantum walk

2017/08/03 by Kaname Matsue, Leo Matsuoka, Matsue, Kaname +5
Computer Science · #Blockchain Technology Applications and Security #FOS: Physical sciences #Mathematical Physics (math-ph) #Quantum Computing Algorithms and Architecture #Quantum Physics (quant-ph)

paper · pdf · doi:10.48550/arxiv.1708.01052

openalex publication_date 2017/08/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We show that discrete-time quantum walks on the line, ℤ, behave as "the quantum tunneling". In particular, quantum walkers can tunnel through a double-well with the transmission probability 1 under a mild condition. This is a property of quantum walks which cannot be seen on classical random walks, and is different from both linear spreadings and localizations.

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