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quantum-visualizations / qmsolve

⚛️ A module for solving and visualizing the Schrödinger equation.
BSD 3-Clause "New" or "Revised" License
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shift-invert method to improve eigsh convergence #1

Closed dhudsmith closed 3 years ago

dhudsmith commented 3 years ago

Following guidance here: https://docs.scipy.org/doc/scipy/reference/tutorial/arpack.html#shift-invert-mode. Simple tests show dramatic speedup in eigensolver.