%0 Journal Article %T A signature of quantum spin liquids in superconductors with topological order %A Debanjan Chowdhury %A Brian Swingle %A Subir Sachdev %J Physics %D 2013 %I arXiv %X This paper has been withdrawn and superseded by a new version entitled "Singularity of the London penetration depth at quantum critical points in superconductors" by Debanjan Chowdhury, Brian Swingle, Erez Berg and Subir Sachdev, posted in arXiv:1305.2918. The more recent paper has a number of new interesting results and includes a comprehensive analysis of 3 different classes of QCPs, including the one that was originally considered. %U http://arxiv.org/abs/1303.6288v2