| Friday 19 April 2024 | |
| Events for day: Wednesday 15 February 2017 |
| 09:00 - 18:00 Workshop IPM Workshop on Particle Physics Phenomenology School PARTICLES AND ACCELERATORS Larak Seminar Room ... 11:00 - 12:00 Computational nanoscience biweekly journal club Reproducibility in density functional theory calculations of solids School NANO SCIENCES Reproducibility in density functional theory calculations of solids The widespread popularity of density functional theory has given rise to an extensive range of dedicated codes for predicting molecular and crystalline properties. However, each code implements the formalism in a different way, raising questions about the reproducibility of such predictions. We report the results of a community-wide effort that compared 15 solid-state codes, using 40 different potentials or basis set types, to assess the quality of the Perdew-Burk-Ernzerhof equations of state for 71 elemental crystals. We conclude that predictions from recen ... 13:30 - 15:00 Weekly Seminar 3D MHD SIMULATIONS OF WOBBLING AND PROCESSING JETS School ASTRONOMY Jets are powerful signatures of astrophysical activity and areobserved over a wide range of luminosity and spatial scale. Typical jet sources are young stellar objects (YSOs), micro-quasars, and active galactic nuclei (AGNs), while there are indications of jet motion also for a few pulsars and for gamma-ray bursts I present results of the first ever three-dimensional (3D) magnetohydrodynamic (MHD) simulations of the accretion-ejection structure. We investigate the 3D evolution of jets launched symmetrically from single stars but also jets from warped disks in binary systems, at different scales. We have applied various model set ... 14:00 - 15:00 Weekly Seminar Quantum optomechanics: From gravitational wave detectors to quantum memories School NANO SCIENCES Quantum optomechanics: From gravitational wave detectors to quantum memories Cavity optomechanics which is a cross field of quantum optics and nano-science focuses on the radiation pressure interaction between nano-mechanical oscillators and electromagnetic field. This interaction can bring massive mechanical oscillator to remarkable low temperatures, opens up new ways for preparing macroscopic mechanical objects into nearly pure quantum states and testing quantum mechanics on a macroscopic level. In this presentation after reviewing the basics of cavity optomechanics, I will focus on the enhanced quantum effects (suc ... |