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Correction for Shekhter et al., Branch-cut singularities in thermodynamics of Fermi liquid systems

PHYSICS. For the article ‘‘Branch-cut singularities in thermodynamics of Fermi liquid systems,’’ by Arkady Shekhter and Alexander M. Finkel’stein, which appeared in issue 43, October 24, 2006, of Proc Natl Acad Sci USA (103:15765–15769; first published October 12, 2006; 10.1073 pnas.0607200103), the authors note that, due to a printer’s error, Fig. 2 appeared incorrectly. The corrected figure and its legend appear below.