Drude weight in presence of nonlocal potentials
| Autor: | Resta, Raffaele |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | The nonlocal potential contributes an extra term to the velocity operator; I show here that such term affects the formal expression of the Drude weight in a nontrivial way. Notably, the present main result fixes a disturbing discrepancy in the Dreyer-Coh-Stengel sum rule [Phys. Rev. Lett. {\bf 128}, 095901 (2022)]. Comment: 2 pages. Transparent derivation of the Drude-weight formula |
| Databáze: | arXiv |
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