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Paper detail

QTRAJ 1.0: A Lindblad equation solver for heavy-quarkonium dynamics

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.

preprint2022arXivOpen access
Hisham Ba OmarMiguel Ángel EscobedoAjaharul IslamMichael StricklandSabin ThapaPeter Vander GriendJohannes Heinrich Weber
hep-phphysics.comp-phnucl-thquant-ph
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Hisham Ba OmarMiguel Ángel EscobedoAjaharul IslamMichael StricklandSabin ThapaPeter Vander GriendJohannes Heinrich Weber

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