You are currently viewing the editor's summary.
View Full TextLog in to view the full text
AAAS login provides access to Science for AAAS members, and access to other journals in the Science family to users who have purchased individual subscriptions.
More options
Download and print this article for your personal scholarly, research, and educational use.
Buy a single issue of Science for just $15 USD.
Nonlinear control of topology
Controlling the topological properties of physical systems provides a platform for developing devices and technology that are robust to defects. Xia et al. present a photonic platform in which the underlying dynamics are driven and tuned by the interplay among topology, non-Hermiticity, and nonlinearity (see the Perspective by Roztocki and Morandotti). Using photonic lattices consisting of laser-written waveguides that are continuous (“gain”) and sectioned (“loss”) and coupled to an interface defect, they demonstrate the nonlinear control of parity-time symmetry and nonlinearity-induced restoration and/or destruction of non-Hermitian topological states. Such concepts are applicable to a broad spectrum of non-Hermitian systems that have intensity-dependent gain or loss and may enable new approaches for light manipulation.
This is an article distributed under the terms of the Science Journals Default License.
