MPSTimeEvolution

(Originally forked from https://github.com/orialb/TimeEvoMPS.jl)

Implementations of time-evolution algorithms for matrix-product states, based on the ITensor library:

• one-site time-dependent variational principle (TDVP1) in its standard version as well as
  • its variant with adaptive bond dimensions, and
  • a non-unitary version (for vectorised mixed states);
• matrix-product states in the Vidal (or canonical) and inverse-canonical gauges,
• the time-evolving block-decimation algorithm (TEBD) for Vidal-form MPS, together with automatic 1st and 2nd order Suzuki-Trotter decompositions,
• the two-site time-dependent variational principle (TDVP2), in a serial and a parallel version.

See the package documentation for a complete list of features, references, a description of the available methods, and some tutorials.

Installation

From a registry

This package is registered in the TensorNetworkSimulations registry. By first adding this registry, with

using Pkg
pkg"registry add https://github.com/phaerrax/TensorNetworkSimulations.git"

(this must be done just once per Julia installation) the package can then be installed as a normal one:

using Pkg
pkg"add MPSTimeEvolution"

From GitHub

Alternatively, straight installation from GitHub is also possible:

using Pkg
pkg "add https://github.com/phaerrax/MPSTimeEvolution.jl"