标题： 强磁场中中性氦的光谱 显示英文标题

标题： Spectrum of Neutral Helium in Strong Magnetic Fields

摘要： 我们展示了在高达$10^{12}$ G的磁场强度范围内，自旋极化中性氦激发态谱的广泛而精确的计算结果。对于磁白矮星星际大气模型来说，这些结果具有相当大的兴趣，我们还提供了这些状态之间低能跃迁的偶极强度的结果。 我们的方法依赖于系统饱和基组的方法来求解Hartree-Fock自洽场方程，并结合一种“精确”的随机方法来估计剩余基组截断误差和电子相关效应。 我们还讨论了绝热近似在强磁化多电子原子中的适用性。 显示英文摘要

摘要： We present extensive and accurate calculations for the excited state spectrum of spin-polarized neutral helium in a range of magnetic field strengths up to $10^{12}$ G. Of considerable interest to models of magnetic white dwarf stellar atmospheres, we also present results for the dipole strengths of the low lying transitions among these states. Our methods rely on a systematically saturated basis set approach to solving the Hartree--Fock self-consistent field equations, combined with an ``exact'' stochastic method to estimate the residual basis set truncation error and electron correlation effects. We also discuss the applicability of the adiabatic approximation to strongly magnetized multi-electron atoms.