The Fast Mode-Fourier-Transform and the bands of the Bethe chain
| Autor: | Reslen, Jose |
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| Rok vydání: | 2024 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | A many-body Fourier transformation with logarithmic scaling in the number of necessary two-site gates is implemented. The protocol is applied to study the Bethe chain as a prototype of a translationally invariant system. The resulting band diagram features a flat pattern highly correlated to interaction mechanisms. The introduced protocol can be applied to a wide spectrum of scenarios and can offer new possibilities of simulation and analysis. Comment: 5 pages, 1 figure, comments or suggestions are welcome |
| Databáze: | arXiv |
| Externí odkaz: |
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