Probing the topological Anderson transition with quantum walksopen access
- Authors
- Bagrets, Dmitry; Kim, Kun Woo; Barkhofen, Sonja; De, Syamsundar; Sperling, Jan; Silberhorn, Christine; Altland, Alexander; Micklitz, Tobias
- Issue Date
- Jun-2021
- Publisher
- AMER PHYSICAL SOC
- Citation
- Physical Review Research, v.3, no.2
- Journal Title
- Physical Review Research
- Volume
- 3
- Number
- 2
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/62392
- DOI
- 10.1103/PhysRevResearch.3.023183
- ISSN
- 2643-1564
2643-1564
- Abstract
- We consider one-dimensional quantum walks in optical linear networks with synthetically introduced disorder and tunable system parameters allowing for the engineered realization of distinct topological phases. The option to directly monitor the walker's probability distribution makes this optical platform ideally suited for the experimental observation of the unique signatures of the one-dimensional topological Anderson transition. We analytically calculate the probability distribution describing the quantum critical walk in terms of a (time-staggered) spin polarization signal and propose a concrete experimental protocol for its measurement. Numerical simulations back the realizability of our blueprint with current date experimental hardware.
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- Appears in
Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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