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arXiv 0906.4147quant-ph
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自旋-马德隆流体

Spin and Madelung fluid

G. Salesi

摘要:

从泡利流出发,我们得到了非相对论性局部速度的两部分分解:一部分平行于动量,另一部分正交于动量。前者被认为是“经典”部分,即质心的速度,后者是“量子”部分,即质心系中的运动速度(即内部"自旋运动“或{ \em Zitterbewegung})。将速度的完整表达式插入经典非相对论的动能项(即,牛顿)拉格朗日,我们直接推导出与马德隆流体相关的所谓“量子势”。这样,粒子的量子力学行为似乎与自旋和Zitterbewegung的存在严格相关。

英文摘要:

Starting from the Pauli current we obtain the decomposition of the non-relativistic local velocity in two parts: one parallel and the other orthogonal to the momentum. The former is recognized to be the ``classical'' part, that is the velocity of the center-of-mass, and the latter the ``quantum'' one, that is the velocity of the motion in the center-of-mass frame (namely, the internal ``spin motion'' or {\em Zitterbewegung}). Inserting the complete expression of the velocity into the kinetic energy term of the classical non-relativistic (i.e., Newtonian) Lagrangian, we straightforwardly derive the so-called ``quantum potential'' associated to the Madelung fluid. In such a way, the quantum mechanical behaviour of particles appears to be strictly correlated to the existence of spin and Zitterbewegung.

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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