| Saturday 4 May 2024 | |
| Events for day: Wednesday 07 July 2021 |
| 11:00 - 12:00 Wednesday Weekly Seminar-google meet Transport Coefficient Near Critical Point School PARTICLES AND ACCELERATORS Abstract: We investigate the time-dependent perturbations of strongly coupled N = 4 SYM theory at finite temperature and at finite chemical potential with a second order phase transition. This theory is modelled by a top-down Einstein-Maxwell-dilaton description which is a consistent truncation of the dimensional reduction of type IIB string theory on AdS5_S5. We focus on spin-1 and spin-2 sectors of perturbations and compute the linearized hydrodynamic transport coefficients up to the third order in gradient expansion. Analytically, we find that all the hydrodynamic quantities have the same critical exponent near the critical point ? = 0.5. ... 13:30 - 15:00 Weekly Seminar (Online) Massive stellar cluster propulations in a cosmic environment https://www.skyroom.online/ch/soa/weekly-seminar School ASTRONOMY Abstract Stellar clusters are present in the local Universe in a variety of environments, from the current cluster formation sites in the disks of the Antennae galaxies to the old GC population that mostly populates the halo of the Milky Way. This implies that their evolution is tightly linked to that of their host galaxy. To understand the observed cluster populations, I will discuss the hypothesis that GCs are the relics of regular cluster formation at high redshift that survived until the present day. For that, I'll use the 34.4cMpc periodic volume from the E-MOSAICS project (Pfeffer+2018, Kruijssen+2019). These simulations enable t ... 14:00 - 15:00 Weekly Seminar Condensed Matter and Statistical Physics Group Thermometry of cold systems at the quantum regime School PHYSICS Abstract: Controlling and measuring the temperature in different devices and platforms that operate in the quantum regime is, without any doubt, essential for any potential application. The theory of quantum thermometry is built under a unifying framework at the crossroads of quantum metrology, open quantum systems, and quantum many-body physics. At a fundamental level, theoretical quantum thermometry is concerned with finding the ultimate bounds and scaling laws that limit the precision of temperature estimation for systems in and out of thermal equilibrium. At a more practical level, it provides the tools to formulate precise, yet f ... |