Tensor renormalization group in bosonic field theory

We compute the partition function of a massive free boson in a square lattice using a tensor network algorithm. We introduce a singular value decomposition (SVD) of continuous matrices that leads to very accurate numerical results. It is shown the emergence of a CDL fixed point structure. In the massless limit, we reproduce the results of conformal field theory including a precise value of the central charge.

Collection/Series: 
Event Type: 
Seminar
Speaker(s): 
Event Date: 
Lundi, Avril 8, 2019 - 15:00 to 16:30
Location: 
Bob Room
Room #: 
405