Семинар на 28.11.2019 г.

На 28 ноември 2019 г., четвъртък, от 13:15 ч. в зала 300 на ИЯИЯЕ ще се състои сбирка, на която Йесе ван Мауден (КУ Льовен, Белгия) ще изнесе доклад на тема:

"From 4D interfaces to 3D CFTs."

Interfaces are important probes into the dynamics of QFTs, they are of interest in a variety of fields, ranging from condensed matter to string theory. Studying such objects in a strong coupling regime poses many difficulties that often cannot be overcome with conventional field theory techniques. To gain a better understanding of field theories with interfaces we employ the AdS/CFT correspondence.
In this talk we will discuss interfaces in a universal class of four-dimensional N=1 SCFTs, with a marginal coupling. Using top-down holography we provide an understanding of these field theories in terms of D3-branes. Furthermore, through compactification (with an SL(2,Z) monodromy) of one of the directions orthogonal to the interface we predict the existence of a new class of three-dimensional CFTs. Finally, we are able to determine the free energies of these theories, which turn out to be closely related to the conformal anomaly in four dimensions.
This will be based on [arXiv:1907.11132].


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