01012nas a2200121   4500008004300000245005300043210005300096260001300149520064100162100002200803700002900825856003600854       2004                        en_Ud  00aRotating Singular Perturbations of the Laplacian0 aRotating Singular Perturbations of the Laplacian  bSpringer3 aWe study a system of a quantum particle interacting with a singular time-dependent uniformly rotating potential in 2 and 3 dimensions: in particular we consider an interaction with support on a point (rotating point interaction) and on a set of codimension 1 (rotating blade). We prove the existence of the Hamiltonians of such systems as suitable self-adjoint operators and we give an explicit expression for their unitary semigroups. Moreover we analyze the asymptotic limit of large angular velocity and we prove strong convergence of the time-dependent propagator to some one-parameter unitary group as (\\\\omega \\\\to \\\\infty).1 aCorreggi, Michele1 aDell'Antonio, Gianfausto  uhttp://hdl.handle.net/1963/2945