BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Ofer Aharony (Weizmann Institute) DTSTART:20201027T120000Z DTEND:20201027T130000Z DTSTAMP:20260513T204331Z UID:CCTP_HEP/19 DESCRIPTION:Title: Little String Theory on Curved Manifolds\nby Ofer Aharony (Weizmann Institute) as part of CCTP HEP Seminars\n\n\nAbstract\nThis talk is based on 1908.02642\, in collaboration with Evtikhiev and Feldman. After reviewi ng Little String Theories (the decoupled theories on the worldvolume of N NS5-branes) we will use their holographic duality to Type II string theory in asymptotically linear dilaton backgrounds in order to study these theo ries on curved space-times. We focus on backgrounds with a large number of Killing vectors (namely\, products of maximally symmetric spaces)\, witho ut requiring supersymmetry (we do not turn on any background fields except the metric). Little String Theory is non-local so it is not obvious which spaces it can be defined on\; we show that holography implies that the th eory cannot be put on negatively curved spaces\, but only on spaces with z ero or positive curvature. For example\, one cannot put Little String Theo ry on a product of an anti-de Sitter space times another space\, without t urning on extra background fields. On spaces with positive curvature\, suc h as products of spheres\, we typically find (for large N) dual holographi c backgrounds which are weakly coupled and weakly curved everywhere\, so t hat they can be well-described by Type II supergravity. In some cases more than one smooth solution exists for Little String Theory on the same spac e\, and they all contribute to the partition function. We also study the t hermodynamical properties of Little String Theory compactified on spheres\ , finding the leading correction to the Hagedorn behavior of the spectrum\ , which is different on curved space than on flat space.\n LOCATION:https://researchseminars.org/talk/CCTP_HEP/19/ END:VEVENT END:VCALENDAR