Black and white holes at material junctions
Yaron Kedem, Emil J. Bergholtz, Frank Wilczek
Abstract
Electrons in type II Weyl semimetals display one-way propagation, which supports totally reflecting behavior at an endpoint, as one has for black hole horizons viewed from the inside. Junctions of type I and type II lead to equations identical to what one has near black hole horizons, but the physical implications, we suggest, are quite different from expectations which are conventional in that context. The time-reversed, "white hole" configuration is also physically accessible.
Topics & Concepts
PhysicsType (biology)Black hole (networking)White holeElectronCondensed matter physicsOpticsWhite (mutation)Theoretical physicsSurface (topology)Topological Materials and PhenomenaChemical and Physical Properties of MaterialsQuantum and electron transport phenomena