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Session Q12 - DCMP: DENSITY FUNCTIONAL THEORY
Mixed session, Friday morning, March 24, 8:00
Room C1, San Jose Convention Center
A generalization of density functional theory known as current density functional theory has been developed for use with electronic systems in the presence of a magnetic field. Phys.\ Rev.\ B 37, 10685 (1988) The local density approximation (LDA) allows the application of this theory to realistic systems. We present the results of a Monte Carlo calculation of the exchange-correlation energy of a two-dimensional electron gas in the presence of a perpendicular magnetic field, which allows the use of LDA in 2-D calculations. A numerical fit to the calculated exchange-correlation energy is given. This work is supported by NSF and US-ONR.