Study of two-dimensional electron systems in the renormalized-ring-diagram approximation

Details Study of two-dimensional electron systems in the renormalized-ring-diagram approximation Study of two-dimensional electron systems in the renormalized-ring-diagram approximation

2006-10-09

arxiv.org/abs/cond-mat/0610236v1

Phys. Rev. B 75, 035432 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 5 figures

Scientific paper

10.1103/PhysRevB.75.035342

With a super-high-efficient numerical algorithm, we are able to self-consistently calculate the Green's function in the renormalized-ring-diagram approximation for a two-dimensional electron system with long-range Coulomb interactions. The obtained ground-state energy is found to be in excellent agreement with that of the Monte Carlo simulation. The numerical results of the self-energy, the effective mass, the distribution function, and the renormalization factor of the Green's function for the coupling constants in the range $0 \le r_s \le 30$ are also presented.

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