[institut] [phys4phys] Strings, Holography & Chaos Seminar Oct 7 19:00 CEST (Zoom): Jose Calderon

[Mihailo Čubrović]

Dear friends,

On October 7 at 19:00 CEST (NOTICE THE TIME!) we will have a Zoom-only 
seminar by Jose Calderon. After the seminar we will have a general 
discussion on modern developments in the swampland program and possible 
connections to black hole physics. Title, abstract and Zoom coordinates 
follow.

The 2d CFT Distance Conjecture in CY Sigma Models

Jose Calderon Infante (California Institute of Technology, Pasadena, 
USA)

After introducing the CFT Distance Conjecture and its connection to the 
Swampland Distance Conjecture, I will discuss its realization in the 
context of 2d N=(2,2) Calabi-Yau sigma models. The CY degenerates at 
singular points in its complex-structure moduli space. Assuming a 
semi-stable degeneration, one can show that infinite-distance 
singularities always lead to a non-empty codimension-one normal-crossing 
intersection. By using a N=(2,2) Landau-Ginzburg model that flows to the 
desired sigma-model in the IR, we argue that this type of singularity 
leads to a continuum of states without gap in the SCFT, as required by 
the CFT Distance Conjecture. This argument is similar to that explaining 
how the worldsheet resolves a conifold singularity in string theory and 
recovers the continuum and the non-vanishing gap predicted by the 
Ooguri-Vafa 2d black hole description of the resolved conifold.

Join Zoom Meeting
https://belgrade-strings-ipb-ac-rs.zoom.us/j/6664242666?pwd=QW5UjVWFuadA4MBhB0K6wockM1OxPZ.1&omn=97654560901

Meeting ID: 666 4242 666
Passcode: 314159

-- 
Dr. Mihailo Čubrović

Center for the Study of Complex Systems
Institute of Physics Belgrade
National Institute of the Republic of Serbia
Pregrevica 118, 11080 Belgrade, Serbia
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