{"id":11612,"date":"2020-10-05T21:06:24","date_gmt":"2020-10-05T21:06:24","guid":{"rendered":"https:\/\/projects.ift.uam-csic.es\/holotube\/?page_id=11612"},"modified":"2020-11-07T20:36:46","modified_gmt":"2020-11-07T20:36:46","slug":"11612-2","status":"publish","type":"page","link":"https:\/\/projects.ift.uam-csic.es\/holotube\/11612-2\/","title":{"rendered":""},"content":{"rendered":"\n

Speaker:<\/strong> Christopher Waddell <\/p>\n\n\n\n

Affiliation:<\/strong>
University of British Columbia<\/p>\n\n\n\n

Title:<\/strong>
Holographic and localization calculations of boundary F for $\\mathcal{N} = 4$ supersymmetric Yang-Mills theory<\/p>\n\n\n\n

Abstract:<\/strong>
N = 4 Supersymmetric Yang-Mills (SYM) theory can be defined on a half-space with a variety of boundary conditions preserving scale invariance and half of the original supersymmetry. These theories describe the low-energy physics of D3-branes ending on stacks of D5-branes and NS5-branes in various ways. Each boundary condition (and more generally, any four-dimensional boundary conformal field theory) can be characterized by a boundary entropy (called “boundary F”) which governs the vacuum entanglement entropy for a half-ball centered on the boundary and also the partition function for the field theory on a hemisphere HS^4. In this work, we calculate boundary F holographically for U(N) N = 4 SYM theory with arbitrary half-supersymmetric boundary conditions, using the known dual type IIB supergravity solutions. For many cases, we also calculate boundary F exactly using supersymmetric localization. The leading term at large N in the supergravity and localization results agree exactly as a function of the ‘t Hooft coupling lambda.<\/p>\n\n\n\n

Waddell_BoundaryFTalk_v3<\/a>Download<\/a><\/div>\n\n\n\n
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