dorsal/arxiv
View SchemaFront Stability in Mean Field Models of Diffusion Limited Growth
| Authors | Douglas Ridgway, Herb Levine, Yuhai Tu |
|---|---|
| Categories | |
| ArXiv ID | patt-sol/9507004 |
| URL | https://arxiv.org/abs/patt-sol/9507004 |
| DOI | 10.1103/PhysRevE.53.861 |
Abstract
We present calculations of the stability of planar fronts in two mean field models of diffusion limited growth. The steady state solution for the front can exist for a continuous family of velocities, we show that the selected velocity is given by marginal stability theory. We find that naive mean field theory has no instability to transverse perturbations, while a threshold mean field theory has such a Mullins-Sekerka instability. These results place on firm theoretical ground the observed lack of the dendritic morphology in naive mean field theory and its presence in threshold models. The existence of a Mullins-Sekerka instability is related to the behavior of the mean field theories in the zero-undercooling limit.
{
"annotation_id": "598641b5-cddc-4701-b1ca-405fd83448e9",
"date_created": "2026-03-02T18:00:29.391000Z",
"date_modified": "2026-03-02T18:00:29.391000Z",
"file_hash": "ec5a2186a94b12720e04a102fca5f11976a0399e401509d88b4f9ba3202c66d2",
"private": false,
"record": {
"abstract": "We present calculations of the stability of planar fronts in two mean field\nmodels of diffusion limited growth. The steady state solution for the front can\nexist for a continuous family of velocities, we show that the selected velocity\nis given by marginal stability theory. We find that naive mean field theory has\nno instability to transverse perturbations, while a threshold mean field theory\nhas such a Mullins-Sekerka instability. These results place on firm theoretical\nground the observed lack of the dendritic morphology in naive mean field theory\nand its presence in threshold models. The existence of a Mullins-Sekerka\ninstability is related to the behavior of the mean field theories in the\nzero-undercooling limit.",
"arxiv_id": "patt-sol/9507004",
"authors": [
"Douglas Ridgway",
"Herb Levine",
"Yuhai Tu"
],
"categories": [
"patt-sol",
"nlin.PS"
],
"doi": "10.1103/PhysRevE.53.861",
"title": "Front Stability in Mean Field Models of Diffusion Limited Growth",
"url": "https://arxiv.org/abs/patt-sol/9507004"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "9e691095-6bb6-458c-af91-977cf723e486",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}