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...
All of the tree amplitudes are constructed for four supersymmetric
theories in six dimensions using spinor-helicity variables and the
CHY formalism. Two of the theories, the world volume theories of an
M5-brane and a D5-brane, only have nonzero...
We study the phase diagram of SU(N)XSU(N) gauge theory with massive
bifundamental Fermion at zero temperature. Assuming that the theory
is confining and gapped, some constraints that come from anomalies
can be put on the phase diagram as a function...
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:
In this talk I will discuss how to apply the S-matrix bootstrap
maximization program to the 2d bosonic O(N) integrable model which
has N species of scalar particles with mass m and no bound states.
We show that the known S-matrix follows from...
Entanglement is an important property of quantum systems, but its
precise definition in field theory poses some challenges. The
problem is particularly acute in gauge theories and string theory,
where extended objects such as Wilson loops and...
After a review of a novel low energy effective action for the
Schwinger-Keldysh generating function, I will describe how it
captures information on the entropy current, Onsager relations, and
new constraints on transport.
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...
The two-point functions for generator O of Coulomb branch chiral
rings in D=4 N=2 SCFT will be determined universally to all orders
in 1/n by the theory's a-anomaly. The calculation will be done
using the method of large-charge expansion presented...
