Adiabatic and Nonadiabatic Energy Transfer in Cold and Ultracold Collisions

该提案解决了碰撞物理学中一些非常困难的当代问题。三体重组的研究将扩展到较重的碱（Na， K，Rb和Cs）。对包括或排除非绝热耦合项和锥形相交时的散射结果进行详细的直接比较，将为解释观测到的现象提供新的见解。相干控制双分子捕集的研究将扩展到包括非绝热效应和激光场。将在从超冷到热能的大能量范围内计算与能量相关的截面。阈值行为和量子共振将被绘制出来。包含电磁相互作用将提供激光强度函数的横截面。激光强度的范围将从非常弱的强度到超过1012瓦/立方厘米的强度。光子系统相互作用将为研究化学反应提供丰富的环境，特别是在超低温和低温下。将发展时间相关的方法来观察不同绝热状态和构型空间区域之间的能量流动。

The proposal tackles some very difficult yet contemporary problems in collision physics.Three-body recombination research will be extended to the heavier alkalis (Na, K,Rb and Cs). A detailed direct comparison of the scattering results when one includes orexcludes nonadiabatic coupling terms and conical intersections will provide new insightsfor interpreting observed phenomena. Study of coherently controlled bimolecularreactions will be extended to include nonadiabatic effects and laser fields. Energydependent cross sections will be calculated over a large energy range from ultracoldenergies to thermal energies. Threshold behavior and quantum resonances will bemapped out. The inclusion of electromagnetic interactions will provide cross sections asa function of laser intensity. The range of laser intensities will be from very weakintensities to intensities of more than 1012 watts/cm3. Photon-system interactions willprovide a rich enviroment for studying chemical reactions especially at ultracold andcold temperatures. Time-dependent methods will be developed to watch the flow ofenergy among different adiabatic states and regions of configuration space.