{ "id": "cond-mat/9802061", "version": "v1", "published": "1998-02-05T12:41:52.000Z", "updated": "1998-02-05T12:41:52.000Z", "title": "Compressibility of a quantum Hall system at $ν= 1/2$", "authors": [ "B. I. Halperin", "Ady Stern" ], "comment": "RevTeX, 2 pages, no figures. Submitted as a comment to cond-mat/9702098, by Shankar and Murthy", "categories": [ "cond-mat.mes-hall" ], "abstract": "Despite the fact that composite fermions may be regarded as electrically neutral objects at Landua-level filling factor $\\nu=1/2$, carrying only an electric dipole moment, we argue that the long-wavelength compressibility of the system is finite.", "revisions": [ { "version": "v1", "updated": "1998-02-05T12:41:52.000Z" } ], "analyses": { "keywords": [ "quantum hall system", "electric dipole moment", "composite fermions", "landua-level filling factor", "electrically neutral objects" ], "note": { "typesetting": "RevTeX", "pages": 2, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "1998cond.mat..2061H" } } }