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Science 15 August 1997:
Vol. 277. no. 5328, pp. 909 - 910
DOI: 10.1126/science.277.5328.909
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Perspectives

Also see the archival list of Enhanced Perspectives

HIGH-PRESSURE PHYSICS:
Enhanced: Shocking Matter to Extreme Conditions

Yogendra M. Gupta and Surinder M. Sharma*

Understanding how matter behaves at high pressure is essential for astrophysics, condensed matter physics, and other fields. In their Perspective, Gupta and Sharma discuss results from a group at Lawrence Livermore National Laboratory in which intense laser energy was used to generate shock waves in hydrogen and deuterium. The results are used to determine the equation of state, which governs how pressure, volume, and temperature are related in a material. In particular, the laser shock studies show that molecular dissociation must be accounted for in models of the equation of state of nature's simplest atomic species.

The authors are at the Institute for Shock Physics and the Department of Physics, Washington State University, Pullman, WA 99164-2814, USA. E-mail: sdc{at}wsu.edu

*Permanent address: High Pressure Physics Division, Bhabha Atomic Research Centre, Bombay 400 085, India.

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Measurements of the Equation of State of Deuterium at the Fluid Insulator-Metal Transition.
G. W. Collins, L. B. Da Silva, P. Celliers, D. M. Gold, M. E. Foord, R. J. Wallace, A. Ng, S. V. Weber, K. S. Budil, and R. Cauble (1998)
Science 281, 1178-1181
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