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arXiv 0907.1736quant-phhep-th
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自伴Calogero Hamilton算子的大振子表示

Large Oscillator representations for self-adjoint Calogero Hamiltonians

D. M. Gitman, I. V. Tyutin, B. L. Voronov

摘要:

在文章arXiv:0903.5277 [quant-ph]中,我们对粒子在Calogero势$V(x)=αx^{-2}$中的一维运动进行了数学上严格的量子力学处理。这样,我们已经描述了所有可能的s.a.运营商(s.a. Hamilton算子)与Calogero Hamilton算子的形式微分表达式$\check{H}=-d_{x}^{2}+αx^{-2}$相关联。在这里,我们讨论一个新的方面的问题,所谓的振荡器表示的Calogero哈密顿。众所周知,形式为$\hat{N}=\hat{a}^{+}\hat{a}$和$\hat{A}=\hat{a}\hat{a}^{+}$的算子称为振荡器型算子。如果初等算子$\hat{a}$和$\hat{a}^{+}$是稠密定义的,则振子型算子服从几个有用的性质。结果是一些s.a. Calogero Hamilton算子是振子型算子。我们描述这样的哈密顿算子,并找到相应的相互伴随的基本运营商。

英文摘要:

In the article arXiv:0903.5277 [quant-ph], we have presented a mathematically rigorous quantum-mechanical treatment of a one-dimensional motion of a particle in the Calogero potential $V(x)=αx^{-2}$. In such a way, we have described all possible s.a. operators (s.a. Hamiltonians) associated with the formal differential expression $\check{H}=-d_{x}^{2}+αx^{-2}$ for the Calogero Hamiltonian. Here, we discuss a new aspect of the problem, the so-called oscillator representation for the Calogero Hamiltonians. As it is know, operators of the form $\hat{N}=\hat{a}^{+}\hat{a}$ and $\hat{A}=\hat{a}\hat{a}^{+}$ are called operators of oscillator type. Oscillator type operators obey several useful properties in case if the elementary operator $\hat{a}$ and $\hat{a}^{+}$ are densely defined. It turns out that some s.a. Calogero Hamiltonians are oscillator type operators. We describe such Hamiltonians and find the corresponding mutually adjoint elementary operators.

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