This is the Linux app named WaveTrain (Python) whose latest release can be downloaded as v1.0.1.zip. It can be run online in the free hosting provider OnWorks for workstations.
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WaveTrain (Python)
DESCRIPTION
WaveTrain is an open-source software for numerical simulations of chain-like quantum systems with nearest-neighbor (NN) interactions only (with or without periodic boundary conditions). This Python package is centered around tensor train (TT, or matrix product) representations of quantum-mechanical Hamiltonian operators and (stationary or time-evolving) state vectors. WaveTrain builds on the Python tensor train toolbox scikit_tt, which provides efficient construction methods, storage schemes, as well as solvers for eigenvalue problems and linear differential equations in the TT format.
WaveTrain comprises solvers for time-independent and time-dependent Schrödinger equations employing TT decompositions to construct low-rank representations. Often, the TT ranks of state vectors are found to depend only marginally on the chain length N, which results in the computational effort growing only slightly more than linearly in N, thus mitigating the curse of dimensionality.
Features
- Time-dependent/-independent Schroedinger equation
- Quantum-classical dynamics (Ehrenfest aka mean field)
- Chain-like systems with nearest-neighbor interactions only
- Low-rank tensor train representations of state vectors
- Demonstration examples with animated graphics
- Latest version 1.0.1 released in November 2022
Audience
Science/Research, Advanced End Users
Categories
This is an application that can also be fetched from https://sourceforge.net/projects/wavetrain.wavepacket.p/. It has been hosted in OnWorks in order to be run online in an easiest way from one of our free Operative Systems.
