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...
It is important to understand the origin of exceptional symmetries
like E7 duality in 4d M-Sugra. Depending on the context and the
defining property at work (anomaly or divergence cancellation,
attractor mechanism, classification of supergauge...
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...
