Physics

Abstract: The $\epsilon$-expansion is a widely used technique to study aspects of renormalization group flows and critical phenomena. In this talk, I will discuss  recent developments of the $\epsilon$-expansion in the study of boundary and defect...

Abstract: I will argue on the possibility that compact extra dimensions obtain large size by higher dimensional inflation, relating the weakness of the actual gravitational force to the size of the observable universe. Although this can be realised...

Abstract: In a spacetime with asymptotically anti-de-Sitter boundaries, localized bulk events produce characteristic signals at boundary locations that are lightlike from the event. I will describe (thought) experiments that use boundary wavepackets...

This semester, we will be beginning a *very informal* get-together every Monday of people interested in/working on phenomenology and new theories beyond the standard model.  The idea is to discuss over lunch. Grab lunch in the dining hall and bring...

Abstract: One-loop studies of de Sitter thermodynamics revealed universal codimension-2 “edge” degrees of freedom on the horizon of a static patch. I will show how to determine their spectra for fields of arbitrary mass and spin. For the graviton...

This semester, we will be beginning a *very informal* get-together every Monday of people interested in/working on phenomenology and new theories beyond the standard model.  The idea is to discuss over lunch, perhaps meet up around 12.20, grab lunch...

Abstract: I will explore one of the most profound open question in particle physics, focusing on some exciting directions of my ongoing research activity: the strong CP problem. I will begin with an overview of the strong CP problem, highlighting...

Abstract: Global symmetry and anomaly have long served as powerful organizing principles for understanding quantum phases of matter in ground states. In this talk I will discuss recent progress in extending these ideas to many-body mixed states. I...