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arXiv 1306.1311quant-ph
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控制非扩展波包传播动力学的有效哈密顿量

The effective Hamiltonian which governs the propagation dynamics of nonspreading wave packets

Chyi-Lung Lin

摘要:

我们讨论了非扩展波包的传播动力学。我们把哈密顿量分解成两部分。第一部分使得波包是其瞬时本征态,因此与包的传播无关。第二部分被证明是有效的哈密顿量管理的运动包的经典和量子力学。因此,类似于埃克塞特定理,非扩展波包提供了另一个直接连接量子力学和经典力学的观点。这种分析也适用于非平方可积包,如艾里包。

英文摘要:

We discuss the propagation dynamics of nonspreading wave packets. We decompose the Hamiltonian into two parts. The first part is such that wave packets is its instantaneous eigenstate and is therefore irrelevant to the propagation of the packet. The second part is shown to be the effective Hamiltonian governing the motion of the packet both classically and quantum mechanically. Thus, analogous to Ehrenfest's theorem, nonspreading wave packets offer another view point directly connecting quantum mechanics and classical mechanics. This analysis also works for non-square-integrable packets, such as Airy packets.

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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