Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2006-08-17
Physics
Condensed Matter
Statistical Mechanics
38 pages, 9 figures, 4 tables
Scientific paper
Employing numerical and theoretical methods, we investigate the structural characteristics of random sequential addition (RSA) of congruent spheres in $d$-dimensional Euclidean space $\mathbb{R}^d$ in the infinite-time or saturation limit for the first six space dimensions ($1 \le d \le 6$). Specifically, we determine the saturation density, pair correlation function, cumulative coordination number and the structure factor in each =of these dimensions. We find that for $2 \le d \le 6$, the saturation density $\phi_s$ scales with dimension as $\phi_s= c_1/2^d+c_2 d/2^d$, where $c_1=0.202048$ and $c_2=0.973872$. We also show analytically that the same density scaling persists in the high-dimensional limit, albeit with different coefficients. A byproduct of this high-dimensional analysis is a relatively sharp lower bound on the saturation density for any $d$ given by $\phi_s \ge (d+2)(1-S_0)/2^{d+1}$, where $S_0\in [0,1]$ is the structure factor at $k=0$ (i.e., infinite-wavelength number variance) in the high-dimensional limit. Consistent with the recent "decorrelation principle," we find that pair correlations markedly diminish as the space dimension increases up to six. Our work has implications for the possible existence of disordered classical ground states for some continuous potentials in sufficiently high dimensions.
Stillinger Frank H.
Torquato Salvatore
Uche O. U.
No associations
LandOfFree
Random Sequential Addition of Hard Spheres in High Euclidean Dimensions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Random Sequential Addition of Hard Spheres in High Euclidean Dimensions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Random Sequential Addition of Hard Spheres in High Euclidean Dimensions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-388573