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arXiv 1411.7867math-phhep-thmath.MPquant-ph
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薛定谔方程的对称性与代数/超代数对偶

Symmetries of the Schrödinger Equation and Algebra/Superalgebra Duality

Francesco Toppan

摘要:

一些关键特征的对称性的薛定谔方程是共同的更广泛的一类动力系统(一些正在建设中)的说明。我讨论代数/超代数对偶涉及一阶和二阶微分算子。它为谱生成子代数提供了不同的观点。介绍了依赖于表象的壳上对称性概念。将时间导数对称算子与$sl(2)$子代数的根或Cartan生成元相关联的差异进行了讨论。在一维拉格朗日超共形σ模型的应用中,它意味着超共形作用量是超对称的或非超对称的。

英文摘要:

Some key features of the symmetries of the Schrödinger equation that are common to a much broader class of dynamical systems (some under construction) are illustrated. I discuss the algebra/superalgebra duality involving first and second-order differential operators. It provides different viewpoints for the spectrum-generating subalgebras. The representation-dependent notion of on-shell symmetry is introduced. The difference in associating the time-derivative symmetry operator with either a root or a Cartan generator of the $sl(2)$ subalgebra is discussed. In application to one-dimensional Lagrangian superconformal sigma-models it implies superconformal actions which are either supersymmetric or non-supersymmetric.

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