%0 Journal Article %T Theoretical Description of K-Isomers %A Yang Sun %J Physics %D 2005 %I arXiv %R 10.1063/1.2187831 %X A proper treatment of K-mixing is the key to understanding K-isomers. Here, we present a method based on the projected shell model. This method differs from the usual description of multi-quasiparticle states by introducing a transformation to the laboratory frame and a subsequent configuration mixing in that frame. It allows a quantitative study on the degree of K-violation through direct calculations of electromagnetic transitions. %U http://arxiv.org/abs/nucl-th/0510001v1