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Woit · 2025-10-20
已登记出处中的最早位置:§25.4 · zh-CN。
来源短摘录与定位
§25.4 · zh-CN · machine_draft · machine-draft-not-reviewed
在 时,群 在第25.3节中讨论。它在谐振子态空间上的作用与标准谐振子哈密顿算符对易,因此是一组保持各能量本征子空间不变的对称变换。将作用限制到子群 ,便可在新的语境中重现此前用齐次多项式构造 表示的方法(见第8.2节)。物理学文献将利用二维谐振子的能量本征态研究 表示的这一做法称为“Schwinger 玻色子方法(Schwinger boson method)”。
§25.4 · en · machine_draft · machine-draft-not-reviewed
In the case , the action of the group discussed in section 25.3 commutes with the standard harmonic oscillator Hamiltonian and thus acts as symmetries on the quantum harmonic oscillator state space, preserving energy eigenspaces. Restricting to the subgroup , we’ll see that we can recover our earlier (see section 8.2) construction of representations in terms of homogeneous polynomials, in a new context. This use of the energy eigenstates of a two dimensional harmonic oscillator appears in the physics literature as the “Schwinger boson method” for studying representations of
原文中已定位的引用(不自动视为依赖)
- [第25.3节](03-the-metaplectic-representation-and-u-d-sp-2d-r#section-25-3)
- [第8.2节](../chapter-08/04-representations-of-su2-construction#section-8-2)
- [section 25.3](03-the-metaplectic-representation-and-u-d-sp-2d-r#section-25-3)
- [section 8.2](../chapter-08/04-representations-of-su2-construction#section-8-2)