Resonant-tunneling in discrete-time quantum walk

Kaname Matsue, Leo Matsuoka, Osamu Ogurisu, Etsuo Segawa

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)35-44
Number of pages10
JournalQuantum Studies: Mathematics and Foundations
Issue number1
Publication statusPublished - Mar 5 2019

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics


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