QTRAJ 1.0: A Lindblad equation solver for heavy-quarkonium dynamics
Abstract
We introduce an open-source package called QTraj that solves the Lindblad equation for heavy-quarkonium dynamics using the quantum trajectories algorithm. The package allows users to simulate the suppression of heavy-quarkonium states using externally-supplied input from 3+1D hydrodynamics simulations. The code uses a split-step pseudo-spectral method for updating the wave-function between jumps, which is implemented using the open-source multi-threaded FFTW3 package. This allows one to have manifestly unitary evolution when using real-valued potentials. In this paper, we provide detailed documentation of QTraj 1.0, installation instructions, and present various tests and benchmarks of the code.
Keywords
Cite
@article{arxiv.2107.06147,
title = {QTRAJ 1.0: A Lindblad equation solver for heavy-quarkonium dynamics},
author = {Hisham Ba Omar and Miguel Ángel Escobedo and Ajaharul Islam and Michael Strickland and Sabin Thapa and Peter Vander Griend and Johannes Heinrich Weber},
journal= {arXiv preprint arXiv:2107.06147},
year = {2022}
}
Comments
35 pages, 10 figures; v2 - minor typos fixed; published version