Thermal ionization of impurity-bound quasiholes in the fractional quantum Hall effect
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866917133087145984 |
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| author | Huang, Ke Sarma, Sankar Das Li, Xiao |
| author_facet | Huang, Ke Sarma, Sankar Das Li, Xiao |
| contents | We study the interplay between a Coulomb impurity and quasiholes in a fractional quantum Hall (FQH) state at finite temperatures. While a repulsive impurity can pin a quasihole and stabilize the FQH state, an attractive impurity cannot bind quasiholes. We demonstrate that at finite temperatures, a quasihole can be thermally ionized from a repulsive impurity, resulting in an ionization phase transition. We propose an experimental setup using exciton sensing to detect such a thermal ionization of quasiholes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_07769 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Thermal ionization of impurity-bound quasiholes in the fractional quantum Hall effect Huang, Ke Sarma, Sankar Das Li, Xiao Mesoscale and Nanoscale Physics Disordered Systems and Neural Networks Strongly Correlated Electrons We study the interplay between a Coulomb impurity and quasiholes in a fractional quantum Hall (FQH) state at finite temperatures. While a repulsive impurity can pin a quasihole and stabilize the FQH state, an attractive impurity cannot bind quasiholes. We demonstrate that at finite temperatures, a quasihole can be thermally ionized from a repulsive impurity, resulting in an ionization phase transition. We propose an experimental setup using exciton sensing to detect such a thermal ionization of quasiholes. |
| title | Thermal ionization of impurity-bound quasiholes in the fractional quantum Hall effect |
| topic | Mesoscale and Nanoscale Physics Disordered Systems and Neural Networks Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2512.07769 |