Quantum random walks without walking

Kia Manouchehri, Jingbo Wang

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Quantum random walks have received much interest due to their nonintuitive dynamics, which may hold the key to a new generation of quantum algorithms. What remains a major challenge is a physical realization that is experimentally viable and not limited to special connectivity criteria. We present a scheme for walking on arbitrarily complex graphs, which can be realized using a variety of quantum systems such as a Bose-Einstein condensate trapped inside an optical lattice. This scheme is particularly elegant since the walker is not required to physically step between the nodes; only flipping coins is sufficient.
Original languageEnglish
Pages (from-to)Article number 060304, 4pp
JournalPhysical Review A
Issue number6
Publication statusPublished - 2009


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