Compressibility of a quantum Hall system at ν= 1/2

1998/02/05 by B. I. Halperin, Ady Stern, Halperin, B. I. +1
Physics and Astronomy · #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #cond-mat.mes-hall

paper · pdf · doi:10.48550/arxiv.cond-mat/9802061

RevTeX, 2 pages, no figures. Submitted as a comment to cond-mat/9702098, by Shankar and Murthy

arxiv created 1998/02/05 · arxiv updated 2009/11/30

Abstract

Despite the fact that composite fermions may be regarded as electrically neutral objects at Landua-level filling factor ν=1/2, carrying only an electric dipole moment, we argue that the long-wavelength compressibility of the system is finite.

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