Superdiffusive transport in quasi-particle dephasing models
| Autor: | Yu-Peng Wang, Chen Fang, Jie Ren |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | SciPost Physics, Vol 17, Iss 6, p 150 (2024) |
| Druh dokumentu: | article |
| ISSN: | 2542-4653 49338706 |
| DOI: | 10.21468/SciPostPhys.17.6.150 |
| Popis: | Investigating the behavior of noninteracting fermions subjected to local dephasing, we reveal that quasi-particle dephasing can induce superdiffusive transport. This superdiffusion arises from nodal points within the momentum distribution of local dephasing quasi-particles, leading to asymptotic long-lived modes. By studying the dynamics of the Wigner function, we rigorously elucidate how the dynamics of these enduring modes give rise to Lévy walk processes, a renowned mechanism underlying superdiffusion phenomena. Our research demonstrates the controllability of dynamical scaling exponents by selecting quasi-particles and extends its applicability to higher dimensions, underlining the pervasive nature of superdiffusion in dephasing models. |
| Databáze: | Directory of Open Access Journals |
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