摘要: This lecture essentially consists of two parts. In the first part we give a unified treatment of bound states and resonances associated with general Hamiltonians in terms of Fredholm determinants. By taking a suitable limiting pro... 展开 This lecture essentially consists of two parts. In the first part we give a unified treatment of bound states and resonances associated with general Hamiltonians in terms of Fredholm determinants. By taking a suitable limiting procedure in which the range of the interaction tends to zero these Hamiltonians give rise to certain models (so-called point interactions) whose bound states and resonances can be computed explicitly. These models are described in the second part. (Atomindex citation 16:000018) 收起