arXiv:0709.2637 · Physical Review LettersComment on “Berry Phase in a Composite System”Han Li, Yong GuoPublished Apr 23, 2008• 3 citationsarXivHTMLPDFAbstractWe show in this comment that the results obtained in a recent work by Yi et al. [Phys. Rev. Lett. 92, 150406 (2004)] are quantitatively not correct and the proposed subsystem Berry phase is not well-defined.DOI10.1103/physrevlett.100.168901