Finite volume form factors in integrable theories
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866913234063196160 |
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| author | Bajnok, Zoltan Linardopoulos, Georgios Szécsényi, István M. Vona, Istvan |
| author_facet | Bajnok, Zoltan Linardopoulos, Georgios Szécsényi, István M. Vona, Istvan |
| contents | We develop a new method to calculate finite size corrections for form factors in two-dimensional integrable quantum field theories. We extract these corrections from the excited state expectation value of bilocal operators in the limit when the operators are far apart. We elaborate the finite size effects explicitly up to the 3rd Lüscher order and conjecture the structure of the general form. We also fully recover the explicitly known massive fermion finite volume form factors. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_09135 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Finite volume form factors in integrable theories Bajnok, Zoltan Linardopoulos, Georgios Szécsényi, István M. Vona, Istvan High Energy Physics - Theory We develop a new method to calculate finite size corrections for form factors in two-dimensional integrable quantum field theories. We extract these corrections from the excited state expectation value of bilocal operators in the limit when the operators are far apart. We elaborate the finite size effects explicitly up to the 3rd Lüscher order and conjecture the structure of the general form. We also fully recover the explicitly known massive fermion finite volume form factors. |
| title | Finite volume form factors in integrable theories |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2304.09135 |