Exploiting algorithm and hardware improvements to solve the ultracold few-body problem

近年来，关于三个中性原子在超低温下碰撞问题的理论研究取得了重大进展。这些进展在很大程度上依赖于计算物理，现在有了一个独特的机会，可以大幅推进超冷少体问题的计算解决方案。这个机会来自一个不太可能的来源：电脑视频游戏玩家。内置到计算机显卡中以驱动游戏的计算能力是巨大的，有望比典型工作站上的计算提高几个数量级。此外，最近的发展使高性能计算社区更容易利用这一能力，这就是这里提出的。同时，对问题的基本表示和所采用的数值算法提出了几点改进意见。总而言之，对这个问题的这种三管齐下的攻击有望使目前在超冷的少体物理学中难以解决的问题变得容易处理。反过来，计算物理方面的这些进展有望进一步加深我们对这些问题的理论理解。

Significant theoretical progress has been made in recent years on the problem of three neutral atoms colliding at ultracold temperatures. Much of that progress has relied on computational physics, and there is now a unique opportunity to substantially advance the computational solution of the ultracold few-body problem. This opportunity comes from an unlikely source: computer video gamers. The computational power that has been built into computer video cards to drive games is enormous, promising orders ofmagnitude improvement over computing on typical workstations. Moreover, recentdevelopments have made it much easier for the high performance computingcommunity to tap into this power, and that is what is proposed here. At the same time, several improvements are proposed to both the underlying representation of the problem and the numerical algorithms employed. Taken together, this three-pronged attack on the problem can be expected to render currently intractable problems in ultracold few-body physics tractable. In turn, these advances in computational physics can be expected to further our theoretical understanding of these problems.