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19982022
most citedGradient Symplectic Algorithms for Solving the Schroedinger Equation with Time-Dependent Potentials

141 citations · 919 across the 47 of their papers we have counts for

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Showing 2005Show all

5 papers · 1 filter

math-ph2005★ 16 cited

A Fundamental Theorem on the Structure of Symplectic Integrators

Siu A. Chin

I show that the basic structure of symplectic integrators is governed by a theorem which states {\it precisely}, how symplectic integrators with positive coefficients cannot be cor…

math-ph2005★ 16 cited

The Complete Characterization of Fourth-Order Symplectic Integrators with Extended-Linear Coefficients

Siu A. Chin

The structure of symplectic integrators up to fourth-order can be completely and analytical understood when the factorization (split) coefficents are related linearly but with a un…

physics.comp-ph2005★ 17 cited

Gradient Symplectic Algorithms for Solving the Radial Schrodinger Equation

Siu A. Chin, Petr Anisimov

The radial Schrodinger equation for a spherically symmetric potential can be regarded as a one dimensional classical harmonic oscillator with a time-dependent spring constant. For…

physics.chem-ph2005

The two electron molecular bond revisited: from Bohr orbits to two-center orbitals

Goong Chen, Siu A. Chin, Yusheng Dou +6

In this review we first discuss extension of Bohr's 1913 molecular model and show that it corresponds to the large-D limit of a dimensional scaling (D-scaling) analysis, as develop…

cond-mat.stat-mech2005★ 58 cited

Fourth-Order Algorithms for Solving the Imaginary Time Gross-Pitaevskii Equation in a Rotating Anisotropic Trap

Siu A. Chin, Eckhard Krotscheck

By implementing the exact density matrix for the rotating anisotropic harmonic trap, we derive a class of very fast and accurate fourth order algorithms for evolving the Gross-Pita…