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Polarization and Magnetization

Seminar Link: Picoelectrodynamics Theory Network - YouTube Microscopic polarization and magnetization fields: Towards a “post-modern” theory The response of solids to incident electromagnetic fields is often heuristically described in terms of macroscopic polarization and magnetization fields. In...

Hyperbolic Band Theory

Seminar Link: Picoelectrodynamics Theory Network - YouTube Abstract Hyperbolic lattices are a new form of synthetic quantum matter in which particles effectively hop on a discrete tiling of two-dimensional hyperbolic space, a non-Euclidean space of negative curvature. Hyperbolic tilings were studied...

Topological Edge Plasmons in Quantum Many-Body Systems

Seminar Link: Picoelectrodynamics Theory Network - YouTube Abstract We discuss how the many-body excitation spectrum of topological insulators is affected by the presence of long-range Coulomb interactions. In the one-dimensional Su-Schrieffer-Heeger model and its mirror-symmetric variant, strongly...

Topological Edge Plasmons in Quantum Many-Body Systems by Prof. Stephan Haas

Prof. Stephan Haas discussed how the many-body excitation spectrum of topological insulators is affected by the presence of long-range Coulomb interactions. In the one-dimensional Su-Schrieffer-Heeger model and its mirror-symmetric variant, strongly localized plasmonic excitations are observed which...

Picophotonics: Atomistic Anomalous Waves in Silicon

Light-matter interaction in materials is central to several photonic devices from lasers to detectors. Over the past decade, nanophotonics, the study of how light flows on the nanometer scale in engineered structures such as photonic crystals and metamaterials has led to important advances. This...