Understanding random-walk dynamical phase coexistence through waiting times
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arXiv
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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866929488706666496 |
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| author | Stuhrmann, David C. Coghi, Francesco |
| author_facet | Stuhrmann, David C. Coghi, Francesco |
| contents | We study the appearance of first-order dynamical phase transitions (DPTs) as `intermittent' co-existing phases in the fluctuations of random walks on graphs. We show that the diverging time scale leading to critical behaviour is the waiting time to jump from one phase to another. This time scale is crucial for observing the system's relaxation to stationarity and demonstrates ergodicity of the system at criticality. We illustrate these results through three analytical examples which provide insights into random walks exploring random graphs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_03567 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Understanding random-walk dynamical phase coexistence through waiting times Stuhrmann, David C. Coghi, Francesco Statistical Mechanics We study the appearance of first-order dynamical phase transitions (DPTs) as `intermittent' co-existing phases in the fluctuations of random walks on graphs. We show that the diverging time scale leading to critical behaviour is the waiting time to jump from one phase to another. This time scale is crucial for observing the system's relaxation to stationarity and demonstrates ergodicity of the system at criticality. We illustrate these results through three analytical examples which provide insights into random walks exploring random graphs. |
| title | Understanding random-walk dynamical phase coexistence through waiting times |
| topic | Statistical Mechanics |
| url | https://arxiv.org/abs/2308.03567 |