BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Jakub Vošmera (ETH Zurich) DTSTART:20211202T144500Z DTEND:20211202T163000Z DTSTAMP:20260423T040623Z UID:LIJC/58 DESCRIPTION:Title: D- branes in AdS3xS3xT4 at k=1 and their holographic duals\nby Jakub Voš mera (ETH Zurich) as part of London Integrability Journal Club\n\n\nAbstra ct\nFollowing the recent work of Eberhardt\, Gaberdiel and Gopakumar\, exa ct comparison between various quantities living on the two sides of the Ad S/CFT duality has become a possibility. The goal of this talk will be to e xtend the existing holographic dictionary to include some non-perturbative vacua on both sides. I will start by reviewing the original\, purely clos ed-string setup\, giving arguments that string theory on ${\\rm AdS}_3\\ti mes {\\rm S}^3 \\times \\mathbb{T}^4$ with minimal $k=1$ NS-NS flux is exa ctly dual to the symmetric-product orbifold CFT with the $\\mathbb{T}^4$ a s the seed. I will then construct various D-branes of this string theory a nd calculate their associated cylinder amplitudes. We will observe that th ese amplitudes match with the cylinder correlators of certain boundary sta tes of the dual CFT\, thus suggesting a direct correspondence between thes e boundary conditions. I will also show that the disk amplitudes of these D-branes localise to those points in the worldsheet moduli space where the worldsheet disk holomorphically covers the spacetime disk. This talk is b ased on https://arxiv.org/abs/2110.05509.\n LOCATION:https://researchseminars.org/talk/LIJC/58/ END:VEVENT END:VCALENDAR