Lee-Yang zeros and edge singularity in a mean-field approach
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| Soggetti: | |
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| _version_ | 1866910236600696832 |
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| author | Wada, Tatsuya Kovács, Győző Kitazawa, Masakiyo Doi, Takahiro M. |
| author_facet | Wada, Tatsuya Kovács, Győző Kitazawa, Masakiyo Doi, Takahiro M. |
| contents | The analytic structure of the partition function in finite-volume systems is investigated at complex chemical potentials in a minimal mean-field effective model of QCD with finite-size effects incorporated. We discuss the temperature dependence of the Lee-Yang zeros and their relation to the edge singularity for various system sizes. Different methods for locating the critical point based on finite-size scaling of Lee-Yang zeros and susceptibility ratios are compared. We demonstrate that these methods can successfully identify the critical point, whereas a careful treatment of corrections from irrelevant operators is crucial for its accurate determination. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_19964 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Lee-Yang zeros and edge singularity in a mean-field approach Wada, Tatsuya Kovács, Győző Kitazawa, Masakiyo Doi, Takahiro M. High Energy Physics - Phenomenology The analytic structure of the partition function in finite-volume systems is investigated at complex chemical potentials in a minimal mean-field effective model of QCD with finite-size effects incorporated. We discuss the temperature dependence of the Lee-Yang zeros and their relation to the edge singularity for various system sizes. Different methods for locating the critical point based on finite-size scaling of Lee-Yang zeros and susceptibility ratios are compared. We demonstrate that these methods can successfully identify the critical point, whereas a careful treatment of corrections from irrelevant operators is crucial for its accurate determination. |
| title | Lee-Yang zeros and edge singularity in a mean-field approach |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2605.19964 |