Add new apps
![](https://ma.issp.u-tokyo.ac.jp/wp-content/uploads/sites/3/2018/04/news.jpg)
We have added info for the following new apps.
- An exact diagonalization package for efficiently solving quantum spin 1/2 lattice models in almost fully spin-polarized sector “QS3“
- An open source library for implementing tensor networks “TensorNetwork“
- A python package for the tight-binding method “PythTB“