University of Würzburg Physicists Study Topological Metamaterials; Benefits to Photonic Quantum Computer

First Confirmation of New Theory by Metamaterial

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+  Physicists at Julius-Maximilians-Universität (JMU) Würzburg in Bavaria, Germany, perform research on those topological metamaterials, a central scheme of the Würzburg-Dresden Cluster of Excellence ct.qmat – Complexity and Topology in Quantum Matter.

“We aim to transfer the insights from topological circuits to other metamaterial platforms in the pursuit of potential applications“, Professor Thomale sums up. This includes optical setups such as photonic waveguides. There, topologically protected states in non-Hermitian systems could prove relevant in the enhancement of signal processing and detectors as well as in the construction of a photonic quantum computer. Eventually, the ultimate scheme in the research on topological metamaterials is the reconnection of novel effects to actual solid states.

+  Topological metamaterials are applied as a novel platform to explore and study extraordinary effects. Instead of using natural materials, researchers artificially arrange the constituents of a topological metamaterial in a regular structure. Such an arrangement is analogous to a solid state in which the atoms form a crystal lattice. Usually, these platforms are used to simulate particular properties of solids in order to make them amenable to experimental investigation.

+  Prospectively, the research team wants to investigate the interplay between topological states and non-Hermitian physics further. One key question will be to which extent the topological protection of states remains intact when interactions with the environment are present.

+  In the long term, the team intends to progress towards quantum hybrid circuits in which they plan to embed superconducting or other quantum mechanical circuit elements. Such circuits offer a versatile platform for the discovery of novel phenomena.

Source:  University of Würzburg.  Dr. Ronny Thomale,  First Confirmation of New Theory by Metamaterial…

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