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arXiv 0904.0387math-phmath.MP
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半经典简单初值表示

Semiclassical Simple Initial Value Representations

Vidian Rousse

摘要:

本文构造了一类在半经典极限$ε\to 0$下收敛于薛定谔方程酉群的Fourier积分算子.收敛是在统一的运营商规范,并允许一个错误界$C_Nε^{N+1}$为任何整数$N$和扩展到Ekefest的时间尺度与界$C_Nε^{N+1-ρ}$,其中$ρ$可以任意小。在化学文献中,这些近似值被称为简单的初始值表示。

英文摘要:

In this article, a class of Fourier Integral Operators which converge to the unitary group of the Schrödinger equation in semiclassical limit $ε\to 0$ is constructed. The convergence is in the uniform operator norm and allows for a error bound $C_Nε^{N+1}$ for any integer $N$ and extends to Ehrenfest timescaleswith bound $C_Nε^{N+1-ρ}$ where $ρ$ can be made arbitrary small. In the chemical literature those approximations are known as simple Initial Value Representations.

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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