[17p-D215-1~10] 11.3 Critical Current, Superconducting Power Applications

[17p-D215-5] A geometric integrator for the time-dependent Gross-Pitaevskii equation describing dynamics of quantum vortices

〇Tetsuya Matsuno¹, Soji Otabe², Yasunori Mawatari³ (1.NIT Ariake College, 2.Kyushu Inst. Tech., 3.AIST)

Keywords:superconductivity, quantum vortex, numerical integration

Recently, a geometric numerical integration method, Affine integrator (AFI), has been proposed for efficient numerical simulation of quantum vortex motion in superconductors or superfluids. By correcting the nonlinear term operation in the AFI, we were able to obtain the exact conserved quantity in the numerical integration method. In this presentation, we report the results of the performance evaluation of the modified AFI.