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Disordered topological graphs enhancing nonlinear phenomena

Journal Article · · Science Advances

Complex networks play a fundamental role in understanding phenomena from the collective behavior of spins, neural networks, and power grids to the spread of diseases. Topological phenomena in such networks have recently been exploited to preserve the response of systems in the presence of disorder. We propose and demonstrate topological structurally disordered systems with a modal structure that enhances nonlinear phenomena in the topological channels by inhibiting the ultrafast leakage of energy from edge modes to bulk modes. We present the construction of the graph and show that its dynamics enhances the topologically protected photon pair generation rate by an order of magnitude. Disordered nonlinear topological graphs will enable advanced quantum interconnects, efficient nonlinear sources, and light-based information processing for artificial intelligence.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE; US Department of the Navy, Office of Naval Research (ONR); US Army Research Office (ARO); National Science Foundation (NSF)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2470864
Journal Information:
Science Advances, Journal Name: Science Advances Journal Issue: 14 Vol. 9; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

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