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Approximation of one-dimensional relativistic point interactions by regular potentials revised
Letters in Mathematical Physics ( IF 1.3 ) Pub Date : 2020-08-12 , DOI: 10.1007/s11005-020-01325-6
Matěj Tušek

We show that the one-dimensional Dirac operator with quite general point interaction may be approximated in the norm resolvent sense by the Dirac operator with a scaled regular potential of the form 1/ε h(x/ε)⊗B, where B is a suitable 2 × 2 matrix. Moreover, we prove that the limit does not depend on the particular choice of h as long as it integrates to a constant value.

中文翻译:

通过正则势修正一维相对论点相互作用的近似

我们表明,具有非常普遍的点相互作用的一维狄拉克算子可以在范数解析意义上由狄拉克算子近似,其具有形式为 1/ε h(x/ε)⊗B 的缩放正则势,其中 B 是合适的 2 × 2 矩阵。此外,我们证明该极限不取决于 h 的特定选择,只要它积分为一个常数值即可。
更新日期:2020-08-12
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