A matrix product state time evolution library for Python based on mpnum

• support for well-known matrix product representations (see mpnum documentation for details), such as:
  • matrix product states (MPS)
  • matrix product operators (MPO)
  • local purification matrix product states (PMPS)
• support for chain (next nearest neighbor coupling) and star (long range coupling) geometries
• real time evolution, using either second or fourth order trotter decomposition, based on algorithms described in: Annals of Physics 326 (2011), 96-192; doi: 10.1016/j.aop.2010.09.012 by Schollwoeck and DMRG for Multiband Impurity Solvers, Institute for Theoretical and Computational Physics, Graz University of Technology by Hans Gerd Evertz
• thermal and ground state generation via imaginary time evolution
• support for generating chain geometry Hamiltonians, reduced states, mixed state purification and local svd compression

To install the latest stable version run

pip install tmps

Required packages:

• numpy, scipy, mpnum

Supported Python versions:

• 3.5, 3.6, 3.7

Contributors

• Fabian Hoeb, [email protected], [University of Ulm]

License

Distributed under the terms of the BSD 3-Clause License (see LICENSE).