Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2010-06-04
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4 pages, 1 figure, 2 tables
Scientific paper
The energy per particle of many body wavefunctions that mix Laughlin liquid with crystalline correlations for periodic samples in the Haldane-Rezayi configuration is numerically evaluated for periodic samples. The Monte Carlo algorithm is employed and the wave functions are constructed in such a way that have the same zeroes as the periodic Laughlin states. Results with up to 16 particles show that these trial wavefunctions have lower energy than the periodic Laughlin states for finite samples even at $\nu=1/3$. Preliminary results for 36 particles suggest that this tendency could reach the thermodynamic limit. These results get relevance in view of the very recent experimental measures that indicate the presence of periodic structures in the 2DEG for extremely small temperatures and clean samples, inclusive at main FQHE filling fractions $\nu=1/3,2/3 $.
Cabo Alejandro
Claro Francisco
Martinez-Pedrera Danny
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