论文标题

旋转1自旋 - 轨道和兔耦合的玻璃纤维凝结物求解器

Spin-1 spin-orbit- and Rabi-coupled Bose-Einstein condensate solver

论文作者

Ravisankar, Rajamanickam, Vudragovic, Dusan, Muruganandam, Paulsamy, Balaz, Antun, Adhikari, Sadhan K.

论文摘要

我们介绍了用于求解总pitaevskii方程的Fortran程序的开放版本,用于在一个(1D)和两个(1D)和两个(2D)空间尺寸的情况下进行和谐捕获的三组分Spin-1 Spinor Bose-Einstein Condense(BEC),并带有或不带有或不带有旋转的(或不带有Spin-Orbit(so)和rabi耦合。程序中包括几种不同形式的耦合。我们将拆分式曲柄 - 尼科尔森离散化进行虚构和实时传播,分别计算固定状态和BEC动力学。假想的时间传播程序计算最低的固定状态。实时传播程序可用于研究动力学。在每个程序的开头提供仿真输入参数。这些程序传播冷凝水波函数并计算几个相关的物理量。程序的输出包括波函数,能量,根平方尺寸,不同的密度曲线(1D程序的线性密度,2D程序的线性和表面密度)。假想的或实时的传播可以从分析波函数或预计算的数值波函数开始。假想时间的传播通常从分析波函数开始,而实时传播通常是从先前计算的收敛的假想时间波函数开始的。

We present OpenMP versions of FORTRAN programs for solving the Gross-Pitaevskii equation for a harmonically trapped three-component spin-1 spinor Bose-Einstein condensate (BEC) in one (1D) and two (2D) spatial dimensions with or without spin-orbit (SO) and Rabi couplings. Several different forms of SO coupling are included in the programs. We use the split-step Crank-Nicolson discretization for imaginary- and real-time propagation to calculate stationary states and BEC dynamics, respectively. The imaginary-time propagation programs calculate the lowest-energy stationary state. The real-time propagation programs can be used to study the dynamics. The simulation input parameters are provided at the beginning of each program. The programs propagate the condensate wave function and calculate several relevant physical quantities. Outputs of the programs include the wave function, energy, root-mean-square sizes, different density profiles (linear density for the 1D program, linear and surface densities for the 2D program). The imaginary- or real-time propagation can start with an analytic wave function or a pre-calculated numerical wave function. The imaginary-time propagation usually starts with an analytic wave function, while the real-time propagation is often initiated with the previously calculated converged imaginary-time wave function.

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