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arXiv 1102.4698math-phmath.MPnucl-thquant-ph
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玻色子模型中的Angular momentum非守恒对称性

Angular momentum non conserving symmetries in bosonic models

L. Fortunato, W. A. de Graaf

摘要:

将Levi-Malcev分解应用于基于酉李代数u(2),u(2)+u(2),u(3)和u(4)的量子力学玻色子模型,可以清楚地解开半单子代数.然后应用加权Dynkin图的理论来确定相关A_1子代数的共轭类,从而引入一个新的角动量非守恒(AMNC)动力学对称的完整分类.基于新的“角动量”算子的整个代数的张量分析揭示了在纯玻色子模型中发生的意想不到的旋量。新的子代数链可以用来建立对角化的ANMC基。

英文摘要:

The Levi-Malcev decomposition is applied to bosonic models of quantum mechanics based on unitary Lie algebras u(2), u(2)+u(2), u(3) and u(4) to clearly disentangle semisimple subalgebras. The theory of weighted Dynkin diagrams is then applied to identify conjugacy classes of relevant A_1 subalgebras allowing to introduce a complete classification of new angular momentum non conserving (AMNC) dynamical symmetries. The tensor analysis of the whole algebra based on the new "angular momentum" operators reveals unexpected spinors to occur in purely bosonic models. The new chains of subalgebra can be invoked to set up ANMC bases for diagonalization.

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