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arXiv quant-ph/0503196quant-ph
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强圆柱约束中的量子散射

Quantum Scattering in Strong Cylindrical Confinement

Ji il Kim, Joerg Schmiedmayer, Peter Schmelcher

摘要:

提出了一种分析受限几何条件下散射特性的格林函数方法。这包括来自例如由杂质产生的引导件内部的中心场的散射。对于原子碰撞,我们的方法适用于抛物约束的情况下,并在一定的限制,也到一个非谐。分析了圆柱约束下球对称散射势$V(r)$的角动量相移$δ_l$之间的耦合。在这些一般条件下,广泛的散射能量覆盖许多横向激发被认为是和变化的束缚态的$V(r)$推导。对于全同原子碰撞,给出了玻色子-费米子和费米子-玻色子映射。

英文摘要:

A Green's function formalism to analyze the scattering properties in confined geometries is developed. This includes scattering from a central field inside the guide created e.g. by impurities. For atomic collisions our approach applies to the case of parabolic confinement and, with certain restrictions, also to an anharmonic one. The coupling between the angular momentum phase shifts $δ_l$ of a spherically symmetric scattering potential $V(r)$ due to the cylindrical confinement is analysed. Under these general conditions, a broad range of scattering energies covering many transversal excitations is considered and changes to the bound states of $V(r)$ are derived. For collisions between identical atoms, the boson-fermion and fermion-boson mappings are demonstrated.

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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