# XQCD 2019 (The 17th International Conference on QCD in Extreme Conditions)

24-26 June 2019
Bunkyo School Building, Tokyo Campus, University of Tsukuba
Japan timezone

## Tensor network study of two dimensional complex $\phi^{4}$ theory at finite density

26 Jun 2019, 16:45
25m
134 (Bunkyo School Building, Tokyo Campus, University of Tsukuba)

### 134

#### Bunkyo School Building, Tokyo Campus, University of Tsukuba

3-29-1 Otsuka Bunkyo-ku Tokyo 112-0012 Japan
Oral talk

### Speaker

Dr Ryo Sakai (Kanazawa University)

### Description

We study the complex $\phi^{4}$ theory with finite chemical potential. To closely understand nontrivial effects such as the Silver Blaze phenomenon, experimental studies on the lattice will give some knowledge; however, on account of the finite chemical potential, there is a sign problem in Monte Carlo simulations. In this study, to overcome the problem, the tensor renormalization group approach is employed, and we give some numerical results surrounding the phenomena in the finite density system.

### Primary author

Dr Ryo Sakai (Kanazawa University)

 Slides