BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Djordje Minic (Virginia Tech) DTSTART:20211108T210000Z DTEND:20211108T220000Z DTSTAMP:20260423T040006Z UID:MISThepth/9 DESCRIPTION:Title: From quantum spacetime to string theory and quantum gravity phenomenolog y\nby Djordje Minic (Virginia Tech) as part of MIST High-Energy Theory Seminar\n\nLecture held in M108\, Mitchell Institute for Fundamental Phys ics and Astronomy.\n\nAbstract\nQuantum gravity effects are traditionally tied to short distances and high energies. In this talk we argue that\, pe rhaps surprisingly\, quantum gravity may have important consequences for t he phenomenology of the infrared. We center our discussion around a concep tion of quantum gravity involving a notion of quantum spacetime that arise s in metastring theory. This theory allows for an evolution of a cosmologi cal Universe in which string-dual degrees of freedom decouple as the Unive rse ages. Importantly such an implementation of quantum gravity allows for the inclusion of a fundamental length scale without introducing the funda mental breaking of Lorentz symmetry. The mechanism seems to have potential for an entirely novel source for dark matter/energy. The simplest observa tional consequences of this scenario may very well be residual infrared mo difications that emerge through the evolution of the Universe.\n LOCATION:https://researchseminars.org/talk/MISThepth/9/ END:VEVENT END:VCALENDAR