Compressible quantum liquid with vanishing Drude weight
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866918006312927232 |
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| author | Abouelkomsan, Ahmed Paul, Nisarga Stern, Ady Fu, Liang |
| author_facet | Abouelkomsan, Ahmed Paul, Nisarga Stern, Ady Fu, Liang |
| contents | We explore the possibility of quantum liquids that are compressible but have vanishing DC conductivity in the absence of disorder. We show that the composite Fermi liquid emerging from strong interaction in a generic Chern band has zero Drude weight, in stark contrast to normal Fermi liquids. Our work establishes the absence of Drude weight as the defining property of the composite Fermi liquid phase, which distinguishes it from the Fermi liquid or other types of non-Fermi liquids. Our findings point to a possibly wide class of gapless quantum phases with unexpected transport and optical properties. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_14747 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Compressible quantum liquid with vanishing Drude weight Abouelkomsan, Ahmed Paul, Nisarga Stern, Ady Fu, Liang Strongly Correlated Electrons Mesoscale and Nanoscale Physics We explore the possibility of quantum liquids that are compressible but have vanishing DC conductivity in the absence of disorder. We show that the composite Fermi liquid emerging from strong interaction in a generic Chern band has zero Drude weight, in stark contrast to normal Fermi liquids. Our work establishes the absence of Drude weight as the defining property of the composite Fermi liquid phase, which distinguishes it from the Fermi liquid or other types of non-Fermi liquids. Our findings point to a possibly wide class of gapless quantum phases with unexpected transport and optical properties. |
| title | Compressible quantum liquid with vanishing Drude weight |
| topic | Strongly Correlated Electrons Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2403.14747 |