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arXiv 1101.4354quant-phphysics.chem-ph
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用四波混合光谱完全重建反应分子的波函数

Complete Reconstruction of the Wavefunction of a Reacting Molecule by Four-Wave Mixing Spectroscopy

David Avisar, David J. Tannor

摘要:

探测反应分子的实时动力学仍然是化学中的核心挑战之一。在这封信中,我们展示了如何激发态反应分子的含时波函数可以完全重建共振相干反斯托克斯拉曼光谱。该方法假设知识的基态电位,但不是任何激发态电位,虽然我们表明,后者可以计算一次的依赖于时间的激发态波函数是已知的。该制剂适用于多原子以及paclics和绑定以及解离激发电位。我们证明了该方法上的Li $_2$分子与其绑定的第一激发态,和模型Li $_2$ -like系统与解离激发态的潜力。

英文摘要:

Probing the real time dynamics of a reacting molecule remains one of the central challenges in chemistry. In this letter we show how the time-dependent wavefunction of an excited-state reacting molecule can be completely reconstructed from resonant coherent anti-Stokes Raman spectroscopy. The method assumes knowledge of the ground-state potential but not of any excited-state potential, although we show that the latter can be computed once the time-dependent excited-state wavefunction is known. The formulation applies to polyatomics as well as diatomics and to bound as well as dissociative excited potentials. We demonstrate the method on the Li$_2$ molecule with its bound first excited-state, and on a model Li$_2$-like system with a dissociative excited state potential.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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