Události

Abstrakt:

We show that certain quantum systems in non-trivial classical backgrounds can be mapped into entirely classical systems in higher dimensions. The evolution of the classical system can be used to obtain the particle production rate as well as the quantum backreaction on the classical background. The technique has many potential applications, including breather/oscillon dynamics, Hawking radiation and black hole evaporation, and particle production during inflation.

Přijďte nás navštívit na Veletrh vědy - největší český science festival! Od čtvrka do soboty 6. - 8. 6. v PVA EXPO Letňany, vstup zdarma.

Pomocí virtuální reality se naživo podíváte na detektor ATLAS v CERN v Ženevě 100 metrů pod zemí či do hal nejsilnějších laserů světa v ELI Beamlines a centru HiLASE. V mlžné komoře na vlastní oči uvidíte dráhy částic kosmického záření, které prolétají všude kolem nás a naši kosmologové Vás seznámí s tajemstvími vesmíru. Vyzkoušíte si hojení ran nízkoteplotním plazmatem a mnoho dalšího! Letošní...

Abstract: This talk presents an overview of our recent work on the interaction of ultrashort, high-intensity terahertz pulses with semiconductor materials. After a brief introduction to the field of extreme nonlinear optics in atoms and solids, the basic ingredients of the microscopic semiconductor modelling are summarized. Examples of successful theory-experiment comparisons are discussed, including the generation of very high harmonics, dynamical Bloch oscillations, internal quantum interference effects, quasiparticle collisions, as well as lightwave valleytronics in TMDCs...

The workshop will bring together the forefront science experts as well as young scientists interested in topological aspects of magnetic, superconducting, ferroelectric as well as liquid crystal matter.
Workshop webpage...