DMRGPy is a Python library to compute quasi-one-dimensional spin chains and fermionic systems using matrix product states with DMRG as implemented in ITensor. Most of the computations can be performed both with DMRG and exact diagonalization for small systems, which allows one to benchmark the results.

Real-space parallel density matrix renormalization group (DMRG) based on ITensor

Python wrapper for ITensor

Using simple TRG code to benchmark different tensor implements.

User interface to solve quantum many-body spin systems with matrix product states (using ITensor)

安装和使用ITensor

Bose-Hubbard and extended Bose-Hubbard model DMRG calculations and classification of phases.

Load quantum circuits from OpenQASM files and simulate their result.