Journal Club 16.09.21
Claudia Merger
"Job" of RG: Keep important degrees of freedom (DOFs), integrate out the rest
"Job" of RG: Keep important degrees of freedom (DOFs), integrate out the rest
Difficulty: Which DOFs are important?
"Job" of RG: Keep important degrees of freedom (DOFs), integrate out the rest
Difficulty: Which DOFs are important?
Idea: Let a neural network (NN) find the answer for you
RSMI algorithm
RSMI algorithm
Application to Ising model
Application to dimer model
Discussion
maximize
maximize
Variant of "Information Bottleneck method"
3 restricted Boltzmann machines:
2 trained with contrastive divergence algorithm, learn and
3 restricted Boltzmann machines:
2 trained with contrastive divergence algorithm, learn and
Third learns
3 restricted Boltzmann machines:
2 trained with contrastive divergence algorithm, learn and
Third learns
using
3 restricted Boltzmann machines:
2 trained with contrastive divergence algorithm, learn and
Third learns
using
to maximize
Then: Sample from
and iterate the whole procedure
= Kardanoff
Block-spin
Goal: Train on
have: ,
Train:
use: