A marginal remark on massless neutral boson is two-gap superconductors
arXiv:cond-mat/0201488
Abstract
We make some remarks on massless neutral boson in two-flavour Abelian Higgs model. {\bf Note added:} {\it this remark was merged with journal version of cond-mat/0111192 on a referee request.}
v3: Merged with the journal version of cond-mat/0111192 on a referee request. v4: references added