BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Chrysoula Markou (Pisa\, Scuola Normale Superiore) DTSTART:20241209T100000Z DTEND:20241209T110000Z DTSTAMP:20260423T024827Z UID:NKUA-HEP/33 DESCRIPTION:Title: On the deep string spectrum\nby Chrysoula Markou (Pisa\, Scuola Norm ale Superiore) as part of NKUA HEP Seminars\n\nLecture held in Seminar Roo m of Nuclear and Particle Physics Division.\n\nAbstract\nHow well do we un derstand string theory? As an indicator can be thought of the degree of ou r understanding of its spectrum. Yet\, other than comprising infinitely ma ny physical states of arbitrarily high spin and mass\, what does the strin g spectrum look like? Traditional methodologies can yield its state conten t on a level-by-level basis\, a straightforward procedure which however be comes cumbersome as the level increases. In this seminar\, we will discuss a new\, covariant and efficient technology with which entire physical tra jectories can be excavated. It is based on the observation that the Viraso ro constraints in fact encode the generators of a bigger algebra\, that is a symplectic algebra\, which commutes with the spacetime Lorentz algebra. This enables constructing trajectories deeper inside the spectrum as “c lones” of simpler ones\, upon suitably dressing the latter\, depending o n the “depth” of the trajectory we aim to reach.\n LOCATION:https://researchseminars.org/talk/NKUA-HEP/33/ END:VEVENT END:VCALENDAR