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

近年来，在三个中性原子在超冷温度下碰撞的问题上取得了重大的理论进展。这些进步很大程度上依赖于计算物理学，现在有一个独特的机会来实质性地推进超冷少体问题的计算解决方案。这个机会来自一个意想不到的地方：电脑游戏玩家。内置在电脑视频卡上的计算能力是巨大的，可以驱动游戏，比普通工作站的计算能力有数量级的提高。此外，最近的发展使得高性能计算社区更容易利用这种能力，这就是本文所建议的。同时，对问题的基本表示和所采用的数值算法提出了若干改进。总的来说，这三管齐下的问题可以预期使目前在超冷少体物理中棘手的问题变得容易处理。反过来，计算物理学的这些进步可以期望进一步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.