High Temperature Superconductivity in the Cuprates: Phenomena from a Theorist's Point of View
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866915091907084288 |
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| author | Ramakrishnan, T. V. |
| author_facet | Ramakrishnan, T. V. |
| contents | I present a selection of experimental results on metallic cuprates, both above the superconducting transition temperature $T_c$ (often called the strange metal state) and in the superconducting state. It highlights this still poorly understood part of the physical world. After an introduction, I talk briefly about the pseudogap regime and about the unusual linear resistivity phenomenon. Several empirical correlations between observed quantities are mentioned, e.g. $T_c$ and superfluid density (Uemura), $T_c$ and next nearest neighbour hopping, slope of the linear resistivity and $T_c$. In the belief that a comprehensive explanation may need an understanding of the extremely strongly correlated metal, a few initial steps in this direction are outlined. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_02351 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | High Temperature Superconductivity in the Cuprates: Phenomena from a Theorist's Point of View Ramakrishnan, T. V. Strongly Correlated Electrons Superconductivity Quantum Physics I present a selection of experimental results on metallic cuprates, both above the superconducting transition temperature $T_c$ (often called the strange metal state) and in the superconducting state. It highlights this still poorly understood part of the physical world. After an introduction, I talk briefly about the pseudogap regime and about the unusual linear resistivity phenomenon. Several empirical correlations between observed quantities are mentioned, e.g. $T_c$ and superfluid density (Uemura), $T_c$ and next nearest neighbour hopping, slope of the linear resistivity and $T_c$. In the belief that a comprehensive explanation may need an understanding of the extremely strongly correlated metal, a few initial steps in this direction are outlined. |
| title | High Temperature Superconductivity in the Cuprates: Phenomena from a Theorist's Point of View |
| topic | Strongly Correlated Electrons Superconductivity Quantum Physics |
| url | https://arxiv.org/abs/2501.02351 |