Physics

IAS Amplitudes Group Meeting

April 08, 2025 | 2:30pm - 4:00pm

Abstract: We describe a (surprisingly) novel, uniform formula for all inverse propagators appearing in $tr(\phi^3)$ amplitudes which are dual to a basis of rays of the tropical Grassmannian $TropG(2,n)$.  Our formula manifests the standard kinematic...

Princeton University Dark Cosmos Seminar

April 01, 2025 | 4:00pm - 5:00pm

The identity of dark matter is one of the biggest outstanding questions in astrophysics today. The smallest galaxies in the universe, dwarf galaxies, are powerful probes of its identity, as they are composed predominantly of dark matter.  However...

IAS Amplitudes Group Meeting

April 01, 2025 | 2:30pm - 4:00pm

Abstract: We begin with understanding scalar color-ordered amplitudes via the kinematic mesh and the ABHY associahedron. There are three important aspects of this construction: its zeros, large deformations and splitting. The zeros will imply the...

Abstract: One of the best understood AdS/CFT incarnations relates tensionless k=1 strings on AdS3 to a symmetric product CFT2. I will discuss an exact duality between string theory on a spacetime which is not asymptotically AdS and a non-conformal...

IAS High Energy Theory Seminar

March 28, 2025 | 11:00am - 12:15pm

Abstract: Quantum condensed matter has traditionally focused on ground states and equilibrium properties of spatially extended systems, such as electrons in crystalline materials. However, the advent of noisy-intermediate-scale-quantum (NISQ)...

IAS Special Physics Seminar

March 27, 2025 | 11:00am - 12:15pm

Abstract: Informally, a quantum cellular automaton (QCA) describes some discrete-time local dynamics of a quantum system.  Formally, a QCA is a *-automoprhism of the algebra of local operators.  Local quantum circuits provide one example of QCA, but...

IAS Amplitudes Group Meeting

March 25, 2025 | 2:30pm - 4:00pm

Abstract: In this talk, I will review a recent progress on the use of the Amplituhedron construction to calculate four-point scattering amplitudes in the planar N=4 SYM theory. This uses a novel expansion of the loop integrand using negative...