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arXiv 1112.2189math-phmath.MP
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经典散射理论中的时滞和Calabi不变量

Time delay and Calabi invariant in classical scattering theory

Antoine Gournay, Rafael Tiedra de Aldecoa

摘要:

本文定义了辛流形上抽象散射对(H_0,H)的经典时滞,证明了它的存在性,并得到了它的显式表达式。作为副产品,我们建立了一个经典版本的量子力学的艾森巴德-维格纳公式。利用V. Buslaev和A. Pushnitski关于哈密顿力学中散射矩阵的推广,我们还得到了Poincaré散射映射的Calabi不变量导数的显式表达式。我们的结果被应用到色散哈密顿,一个经典的粒子在一个管和庞加莱球上的哈密顿。

英文摘要:

We define, prove the existence and obtain explicit expressions for classical time delay defined in terms of sojourn times for abstract scattering pairs (H_0,H) on a symplectic manifold. As a by-product, we establish a classical version of the Eisenbud-Wigner formula of quantum mechanics. Using recent results of V. Buslaev and A. Pushnitski on the scattering matrix in Hamiltonian mechanics, we also obtain an explicit expression for the derivative of the Calabi invariant of the Poincaré scattering map. Our results are applied to dispersive Hamiltonians, to a classical particle in a tube and to Hamiltonians on the Poincaré ball.

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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