# IAS High Energy Theory Seminar

### Quantum Computing and the Difficulty of Simulating Quantum Many-Body Systems

Ignacio Cirac

Quantum many-body systems are very hard to simulate, since computational resources (time and memory) typically grow exponentially with the system size. However, quantum computers or analog quantum simulators may perform that task in a much more...

### Superstring Amplitudes in Genus 0 and Double Copy

This is joint work with Clément Dupont. Motivated by double-copy  (Kawai-Lewellen-Tye) formulae relating open and closed superstring amplitudes at tree-level, I will explain a general double-copy formula for period integrals on algebraic varieties...

### Conformal Colliders Meet the LHC

Ian Moult

Lightray operators have played an important role in numerous recent developments in conformal field theory. These operators, and their associated operator product expansion (OPE), also play a central role in collider experiments, where they govern...

We revisit the computation of string correlation functions in AdS3 with pure NS-NS flux from a worldsheet point of view. These correlators contain all the perturbative information about the spacetime CFT and the existence of winding strings in AdS3...

### Khovanov Homology from Mirror Symmetry

Mina Aganagic

Khovanov showed, more than 20 years ago, that there is a deeper theory underlying the Jones polynomial. Theknot categorification problem” is to find a uniform description of this theory, for all gauge groups, which originates from physics. I found...

### Spontaneously Broken Boosts in CFTs

Conformal Field Theories (CFTs) have rich dynamics in heavy states. We describe the constraints due to spontaneously broken boost and dilatation symmetries in such states. The spontaneously broken boost symmetries require the existence of new low...

### Some Half-Baked Thoughts about de Sitter Space

The question I will address is: How does the holographic principle apply to de Sitter space?

### N=2* SU(2) Supersymmetric Yang-Mills Theory and Four-Manifold Invariants

This is a continuation of a series of talks I have given in recent years reporting on work with Jan Manschot, et. al.
There will be some repetition, and some updates and new results.   (See below for some relevant links.)
Manschot and I have...

### Size and Momentum of an Infalling Particle in the Black Hole Interior

The future interior of black holes in AdS/CFT can be described in terms of a quantum circuit. We investigate boundary quantities detecting properties of this quantum circuit. We discuss relations between operator size, quantum complexity, and the...

### N=2* SU(2) Supersymmetric Yang-Mills Theory and Four-Manifold Invariants

Gregory Moore

This is a continuation of a series of talks I have given in recent years reporting on work with Jan Manschot, et. al.
There will be some repetition, and some updates and new results.   (See below for some relevant links.)
Manschot and I have...