Breakdown of adiabaticity in topological quantum liquids
Fuente:
arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866918212455628800 |
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| author | Ciaramelletti, Carola Arrufat-Vicente, Daniel Paganelli, Simone Defenu, Nicolo |
| author_facet | Ciaramelletti, Carola Arrufat-Vicente, Daniel Paganelli, Simone Defenu, Nicolo |
| contents | We study the temporal behavior of topological quantum fluids with strong long-range couplings under slow external perturbations, whose rate $δ$ approaches the quasi-static limit $δ\to 0$. As expected, due to strong long-range interactions, the system lies in the mean-field universality and the density of defects for drives across the quantum critical point is adiabatic $n_{\rm exc}\propto δ^{2}$. However, if the drive is instead terminated precisely at the edge of the topological non-trivial phase, the number of generated excitations becomes extensive $n_{\rm exc}\propto O(1)$. This result fundamentally breaks the established universal behavior observed in local topological quantum fluids and demonstrates a novel mechanism for the breakdown of adiabaticity in fermionic systems with strong long-range interactions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_16818 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Breakdown of adiabaticity in topological quantum liquids Ciaramelletti, Carola Arrufat-Vicente, Daniel Paganelli, Simone Defenu, Nicolo Strongly Correlated Electrons We study the temporal behavior of topological quantum fluids with strong long-range couplings under slow external perturbations, whose rate $δ$ approaches the quasi-static limit $δ\to 0$. As expected, due to strong long-range interactions, the system lies in the mean-field universality and the density of defects for drives across the quantum critical point is adiabatic $n_{\rm exc}\propto δ^{2}$. However, if the drive is instead terminated precisely at the edge of the topological non-trivial phase, the number of generated excitations becomes extensive $n_{\rm exc}\propto O(1)$. This result fundamentally breaks the established universal behavior observed in local topological quantum fluids and demonstrates a novel mechanism for the breakdown of adiabaticity in fermionic systems with strong long-range interactions. |
| title | Breakdown of adiabaticity in topological quantum liquids |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2511.16818 |