Existence of an intermediate phase for oriented percolation
| Dublin Core | PKP Metadata Items | Metadata for this Document | |
| 1. | Title | Title of document | Existence of an intermediate phase for oriented percolation |
| 2. | Creator | Author's name, affiliation, country | Hubert Lacoin; CNRS & Université Paris Dauphine; France |
| 3. | Subject | Discipline(s) | |
| 3. | Subject | Keyword(s) | Percolation: Growth model; Directed Polymers; Phase transition; Random media |
| 3. | Subject | Subject classification | 82D60; 60K37; 82B44 |
| 4. | Description | Abstract | We consider the following oriented percolation model of $\mathbb {N} \times \mathbb{Z}^d$: we equip $\mathbb {N}\times \mathbb{Z}^d$ with the edge set $\{[(n,x),(n+1,y)] | n\in \mathbb {N}, x,y\in \mathbb{Z}^d\}$, and we say that each edge is open with probability $p f(y-x)$ where $f(y-x)$ is a fixed non-negative compactly supported function on $\mathbb{Z}^d$ with $\sum_{z\in \mathbb{Z}^d} f(z)=1$ and $p\in [0,\inf f^{-1}]$ is the percolation parameter. Let $p_c$ denote the percolation threshold ans $Z_N$ the number of open oriented-paths of length $N$ starting from the origin, and study the growth of $Z_N$ when percolation occurs. We prove that for if $d\ge 5$ and the function $f$ is sufficiently spread-out, then there exists a second threshold $p_c^{(2)}>p_c$ such that $Z_N/p^N$ decays exponentially fast for $p\in(p_c,p_c^{(2)})$ and does not so when $p> p_c^{(2)}$. The result should extend to the nearest neighbor-model for high-dimension, and for the spread-out model when $d=3,4$. It is known that this phenomenon does not occur in dimension 1 and 2. |
| 5. | Publisher | Organizing agency, location | |
| 6. | Contributor | Sponsor(s) | |
| 7. | Date | (YYYY-MM-DD) | 2012-05-31 |
| 8. | Type | Status & genre | Peer-reviewed Article |
| 8. | Type | Type | |
| 9. | Format | File format | |
| 10. | Identifier | Uniform Resource Identifier | http://ejp.ejpecp.org/article/view/1761 |
| 10. | Identifier | Digital Object Identifier | 10.1214/EJP.v17-1761 |
| 11. | Source | Journal/conference title; vol., no. (year) | Electronic Journal of Probability; Vol 17 |
| 12. | Language | English=en | en |
| 14. | Coverage | Geo-spatial location, chronological period, research sample (gender, age, etc.) | |
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