The Busemann Process and Steep Highways in Directed First Passage Percolation
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866912663759486976 |
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| author | McKeown, Sam |
| author_facet | McKeown, Sam |
| contents | We consider the Busemann process in planar directed first passage percolation. We extend existing techniques to establish the existence of the process in our setting and determine its distribution in a number of integrable models. As examples of their utility, we show how these explicit distributions may be used to quantify the semi-infinite geodesics passing through thin rectangles, and the clustering phenomenon observed in competition interface angles. There is a natural connection with various particle systems, and in particular we obtain the multi-class invariant distributions for discrete-time TASEP with parallel updates. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_19159 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The Busemann Process and Steep Highways in Directed First Passage Percolation McKeown, Sam Probability 60K35 We consider the Busemann process in planar directed first passage percolation. We extend existing techniques to establish the existence of the process in our setting and determine its distribution in a number of integrable models. As examples of their utility, we show how these explicit distributions may be used to quantify the semi-infinite geodesics passing through thin rectangles, and the clustering phenomenon observed in competition interface angles. There is a natural connection with various particle systems, and in particular we obtain the multi-class invariant distributions for discrete-time TASEP with parallel updates. |
| title | The Busemann Process and Steep Highways in Directed First Passage Percolation |
| topic | Probability 60K35 |
| url | https://arxiv.org/abs/2510.19159 |