Observation of the charge density wave collective mode in the infrared optical response of VSe$_2$

no code implementations • 8 Jan 2021 • Xuanbo Feng, Jans Henke, Corentin Morice, Charles J. Sayers, Enrico Da Como, Jasper van Wezel, Erik van Heumen

We present a detailed study of the bulk electronic structure of high quality VSe$_{2}$ single crystals using optical spectroscopy.

Strongly Correlated Electrons

Investigation of the Non-equilibrium State of Strongly Correlated Materials by Complementary Ultrafast Spectroscopy Techniques

no code implementations • 4 Dec 2020 • Hamoon Hedayat, Charles J. Sayers, Arianna Ceraso, Jasper van Wezel, Stephen R. Clark, Claudia Dallera, Giulio Cerullo, Enrico Da Como, Ettore Carpene

Specifically, we show the key role of lattice degrees of freedom to establish and stabilize the CDW in this material.

Strongly Correlated Electrons Materials Science Applied Physics

An introduction to kinks in $\varphi^4$-theory

no code implementations • 1 Sep 2020 • Mariya Lizunova, Jasper van Wezel

As a low-energy effective model emerging in disparate fields throughout all of physics, the ubiquitous $\varphi^4$-theory is one of the central models of modern theoretical physics.

Pattern Formation and Solitons Other Condensed Matter