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arXiv 2005.10774math-phmath.MP
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具有对称势的一维Schr dinger算子的自伴扩张

Self-Adjoint extensions of the one-dimensional Schrödinger operator with symmetric potential

Atsushi Higuchi, David Serrano Blanco

摘要:

我们给出了具有对称实值位势的一维薛定谔微分算子的自伴扩张的域与所得域中函数必须满足的边界条件之间的显式对应。众所周知,每个自伴扩张都由一个酉矩阵参数化。我们使这个酉矩阵与边界条件明确的对应,恢复最熟悉的类型的边界条件的特殊情况。我们还证明了这种对应隐含的非对称实值潜力。

英文摘要:

We give an explicit correspondence between the domains of the self-adjoint extensions of a one-dimensional Schrödinger differential operator with symmetric real-valued potential and the boundary conditions the functions in the resulting domains must satisfy. As is well known, each self-adjoint extension is parametrized by a unitary matrix. We make the correspondence of this unitary matrix with the boundary conditions explicit, recovering the most familiar types of boundary conditions as special cases. We also demonstrate this correspondence implicitly for non-symmetric real-valued potential.

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