Level-spacing distribution of a singular billiard
Level-spacing distribution of a singular billiard
In this paper, we examine the level-spacing distribution P(S) of the rectangular billiard with a single pointlike scatterer, which is known as almost integrable. It is shown that the observed P(S) is a new type, which is quite different from the previous conclusion. Even in the strong-coupling limit, the Poisson-like …