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Abstract:
I discuss Quarkyonic matter as a possible explanation for relativistic sound velocities inferred at a few times nuclear matter densities from neutron star mass and radius determinations. Quarkyonic matter is relevant for high density, low temperature nuclear matter. This matter is confining and has nucleon degrees of freedom at the Fermi surface but a Fermis sea made of quarks. It naturally can explain the extremely rapid rise in sound velocities observed.
Important: This seminar is held in building D-11 room 104.
Please, be advised that due to the pandemic sanitary rules, we can absorbe 1 unvaccinated person per 10m^2, which means 4 people. As most of us are vaccinated, this should not be a problem. There will be a list of participants, stating that they were (or were not) vaccinated / are immune / with a valid covid test, where we will ask you to sign in upon arrival. Also, people with ANY symptoms of cold (either of running nose, cough, temperature, ...), not necessarily covid, are not allowed to participate according to the rules. We hope you understand. The situation is dynamic and we will of course keep you posted. At the moment we plan to proceed “live”, similary to teaching at AGH.