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arXiv:1610.03069 · Physical Review X

Observing Topological Invariants Using Quantum Walks in Superconducting Circuits

Emmanuel Flurin, V. V. Ramasesh, Shay Hacohen-Gourgy, L. S. Martin, N. Y. Yao, I. Siddiqi

Published Aug 3, 2017• 147 citations
arXivHTMLPDF

Abstract

Topological invariants, properties of a system that remain unchanged by small deformations, are key to modern understanding of phases of matter but have yet to be directly detected by experiment. A new quantum simulation shows how quantum walks can be used to measure topological invariants for the first time.
DOI
10.1103/physrevx.7.031023

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