Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2007-12-17
Physics
Condensed Matter
Strongly Correlated Electrons
3 pages, 1 figure
Scientific paper
In our recent paper (Phys. Rev. B 76, 075403 (2007)), we have applied the anyon concept to derive an approximate analytic formula for the ground state energy, which applies to two-dimensional (2D) Coulomb systems from the bosonic to the fermionic limit. We make use of these results here to draw attention to correlation effects for two special cases: the spin-polarized 2D fermion system and the charged anyon system close to the bosonic limit. By comparison with quantum Monte-Carlo data (for the former) and exact results obtained in the hypernetted-chain and Bogolyubov approximations (for the latter) we can conclude on correlation effects, which have their origin in the bosonic systems and come into play by using the anyon concept. To our knowledge, these correlations are not yet considered in the literature.
Abdullaev Bakhodir
Park Cheol-Hwan
Rössler Ulrich
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