theory

The new theory links quantum geometry to electron-phonon coupling

by

An illustration of electron-phonon coupling between valence and conduction states in real-time and real-space. Credit: Cmelni/Wikimedia Commons. commons.wikimedia.org/wiki/File:Electron_Phonon_Coupling_Between_Valence_and_Conduction_States.png. A new study published in Nature Physics presents a theory of electron-phonon coupling that is influenced by the quantum geometry of electronic wave functions. The movement of electrons in a lattice and their interactions with lattice vibrations … Read more

The new theory describes how waves carry information from the surroundings

by

Teflon objects (orange cylinders) were placed in a waveguide with a rectangular cross section. Then, an electromagnetic signal (blue wavefront) was injected from the right to extract information about the metallic cuboid shown in gray. By measuring the wave field in the area shown in red, researchers can show how information is generated and transported … Read more