Free Meson Seminars
From Sign Problems to Conformal Dimensions
by Prof. Debasish Banerjee (Saha Institute of Nuclear Physics, Kolkata)
Thursday, February 13, 2020
from
to
(Asia/Kolkata)
at AG69
at AG69
Description |
The inability to solve many strongly interacting systems of interest from first principles calculations has to do with generic features encountered by Markov Chain Monte Carlo methods: the infamous sign problem. In the first part I show a way to solve a sign problem for the O(2)-model at finite density. Extending our methods further, we compute the anomalous dimensions of operators with arbitrary global charges in the same model. The calculation verified the prediction from an effective theory which computed the same quantities in a large charge expansion. We conclude with some new directions to push the numerical studies of CFTs with global O(N) symmetry in d=3. These new models, following the so-called *Qubit* or *D-theory* formulation are ideal candidates to realize in quantum simulators. |