Open source Matrix Product States: Opening ways to simulate entangled many-body quantum systems in one dimension

Solution method: Matrix Product States in one spatial dimension overcome the exponentially growing Hilbert space by truncating the least important parts of it. The error can be well controlled. Local neighboring sites are variationally optimized in order to minimize the energy of the complete system. We can target the ground state and low lying excited states. Moreover, we offer various methods to solve the time evolution following the many-body Schrödinger equation. These methods include e.g. theSuzuki-Trotter decompositions using local propagators or the Krylov method, both approximating the propagator on the complete Hilbert space.