PHYSICS Correction for “Distortions and stabilization of simple-cubic calcium at high pressure and low temperature,” by Wendy L. Mao, Lin Wang, Yang Ding, Wenge Yang, Wenjun Liu, Duck Young Kim, Wei Luo, Rajeev Ahuja, Yue Meng, Stas Sinogeikin, Jinfu Shu, and Ho-kwang Mao, which appeared in issue 22, June 1, 2010, of Proc Natl Acad Sci USA (107:9965–9968; first published May 17, 2010; 10.1073/pnas.1005279107).
The authors note that due to a printer’s error, the affiliation information for Wendy L. Mao was incorrect. The correct institution name is SLAC.
The authors would also like to note that Fig. 5 was incorrect as shown. The corrected figure and its legend appear below.
Fig. 5.
Phonon dispersion relation (Left) and density of states (DOS) (Right) for pm Ca-VI.

