Archive of IAS Physics Group Meetings

I will give introduction to general integrability-based methods to study two-dimensional quantum field theories. The goal (which I don't think I will achieve) is to explain how to compute the boundary entropy (also known as "g-function"), which...

I will review the averaged null energy condition, the Markov property and the quantum null energy condition in quantum field theory from an information-theoretic point of view. I will give some explicit examples from finite quantum systems and free...

I will discuss particle physics phenomenology from the point of view of statistical inference.
I will describe how the concept of information geometry can be used to equip the parameter space of a theory with a metric.
The central object in this...

I will review some of the connections between asymptotic symmetry groups, soft theorems for scattering amplitudes, and memory effects. If time permits I will also discuss special boundary operators for asymptotically flat gravity and their relation...

Suggested reading:
https://arxiv.org/abs/1808.08971
A comment on effective field theories of flux vacua
Shamit Kachru, Sandip P. Trivedi
and references therein. Further references:

Review on flux vacua:
https://arxiv.org/abs/hep-th/0610102

Counting...

I will sample a few interesting results in the subject of $T\bar T$ deformation, mostly from a field-theoretic point of view. I will start with spectrum of the $T\bar T$ deformed QFT and comment on its stringy nature. Then I will talk about the...

Suggested reading:

[1]: review of Euclidean and original derivation of Lorentzian
inversion formula https://arxiv.org/abs/1703.00278

[2]: an alternative derivation https://arxiv.org/abs/1711.03816

[3]: generalization to spin https://arxiv.org/abs...

Here are some references for Haah's code and the larger world of "fractons". This list is far from complete and does not accurately capture the history of the subject.
1. Haah's original work: https://arxiv.org/abs/1101.1962
2. Fractons and duality: h...

In finite entropy systems such as black holes, real-time partition functions do not decay to zero at late times. It is a challenge to derive this non-decaying behavior starting from the path integral over the master fields of a large N theory. I...