Physical Review LettersComment on “Instability and Entanglement of the Ground State of the Dicke Model”Kazimierz Rza̧żewski, Krzysztof WódkiewiczPublished Feb 27, 2006• 28 citationsPublisherAbstractA Comment on the Letter by Vladim'{\i}r Bu\ifmmode \dot{z}\else .{z}\fi{}ek, Miguel Orszag, and Mari'an Ros\ifmmode \dot{}\else .{}\fi{}ko, Phys. Rev. Lett. 94, 163601 (2005). The authors of the Letter offer a Reply.DOI10.1103/physrevlett.96.089301