July 08 2004


Finite size analysis of dilute triangular system (f=1/49) with E=2.0

The structure functions of L=56, 112, 168, and 224 for the dilute triangular lattice (f=1/49) with E=2.0 has been used to test the new program computing the real space correlation.

Pair Correlation Function

The 10000 saved configurations have been used to compute the pair correlation function directly without using the structure function. A pair correlation function is the probability to find two particles with a certain distance (dx,dy).


Real Space Correlation Function

The real space correlation function is the inverse Fourier transform of the structure function. From definition it should have the same values as the pair correlation function. From the pictures below we see this time we get the same values as the pair correlation function shown above.

The same procedure has also been applied to the dense system (f=1/25) with E=2.0. The results are on the page July 6 2004.


Real space correlation function of L=168


Profiles of other rows along a1 direction


Rows of structure functions

To see if the inverse Fourier transform is correct, we draw the rows of the structure functions along k2 direction.

The max peak heights Smax are:

Row 56 112 168 224
1 37.2521 147.27 324.057 584.691
2 12.8732 40.237 79.9687 135.615
3 5.78916 11.3154 17.9232 26.1849