Original discrete EEI linear propagators for arbitrary 3D rotational NLS acquire a state-dependent quadratic even local-logarithm defect that blocks high-order composition; symmetrized EEI and palindromic GSH propagators restore method self-adjointness and designed orders.
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A quantics tensor train solver resolves the Gross-Pitaevskii equation across seven orders of magnitude in length scale in one dimension and on grids larger than a trillion points in two dimensions.
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Admissible Discrete Linear Propagators for High-Order Time Splittings of Rotational Nonlinear Schr\"odinger Equations with Arbitrary Three-Dimensional Rotation
Original discrete EEI linear propagators for arbitrary 3D rotational NLS acquire a state-dependent quadratic even local-logarithm defect that blocks high-order composition; symmetrized EEI and palindromic GSH propagators restore method self-adjointness and designed orders.
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Solving the Gross-Pitaevskii equation on multiple different scales using the quantics tensor train representation
A quantics tensor train solver resolves the Gross-Pitaevskii equation across seven orders of magnitude in length scale in one dimension and on grids larger than a trillion points in two dimensions.