| Thursday 18 April 2024 | |
| Events for day: Tuesday 04 August 2020 |
| 14:00 - 15:00 Weekly Seminar HEPCo Group Light speed as a local observable for soft hairs School PHYSICS Abstract: In flat spacetime, Poincare group is the Lie group of linear transformations on space-time which keeps the speed of light invariant. This is the corner-stone of special relativity. However, in theories defined such that are only asymptotically flat, it has been shown that the group of physical transformations is larger than Poincare, and it is called the BMS group. I will show that this group of transformations does not keep the speed of light invariant. As a result, one can use this physical observable to distinguish geometries which are related by a BMS transformation to each other, i.e the soft hairs. Moreover, thi ... 19:30 - 21:30 IPM-SUT Joint IRQM Webinars on Quark matter and Relativistic hydrodynamics Magnetic dual chiral density wave phase of dense quark matter: Properties and relevance for neutron stars School PARTICLES AND ACCELERATORS Abstract: In this talk, I will introduce the main properties of the so-called MDCDW phase of dense quark matter and present details on the derivation of the equations of axion electrodynamics that govern its electromagnetic transport. Some important results that have contributed to make the MDCDW a viable candidate for neutron star core matter phases will be discussed. Analogies with condensed matter systems will be underlined. ... |