期刊论文详细信息
Testing of two-dimensional local approximations in the current-spin and spin-density-functional theories | |
Article | |
关键词: DIMENSIONAL ELECTRON-GAS; CORRELATION-ENERGY; MAGNETIC-FIELDS; QUANTUM DOTS; STATES; | |
DOI : 10.1103/PhysRevB.67.205327 | |
来源: SCIE |
【 摘 要 】
We study a model quantum dot system in an external magnetic field by using both spin-density-functional theory and current-spin density-functional theory. The theories are used with local approximations for the spin-density and vorticity. The reliabilities of different parametrizations for the exchange-correlation functionals are tested by comparing the ensuing energetics with quantum Monte Carlo results. The limit where the vorticity dependence should be used in the exchange-correlation functionals is discussed.
【 授权许可】
Free