Toward a holographic realization of the 2+1-flavor QCD phase structure
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915692137152512 |
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| author | Shen, Jin-Yang Liu, Xin-Yi Wu, Jin-Rui Wu, Yue-Liang Fang, Zhen |
| author_facet | Shen, Jin-Yang Liu, Xin-Yi Wu, Jin-Rui Wu, Yue-Liang Fang, Zhen |
| contents | We present a fully back-reacted Einstein--Maxwell--Dilaton--flavor model with dynamical light and strange sectors, calibrated to lattice QCD using a machine-learning--assisted spectral method. The model reproduces the 2+1-flavor equation of state and chiral dynamics with quantitative accuracy, and maps the Columbia plot with a tri-critical point at $m_s^{\mathrm{tri}} \simeq 21~\text{MeV}$ and a critical mass $m_c \simeq 0.785~\text{MeV}$, consistent with lattice results. At finite density, it yields a crossover-to-first-order transition and predicts a critical endpoint at $T_C = 75.4~\text{MeV}$ and $μ_C = 768~\text{MeV}$, within the reach of heavy-ion experiments. These findings establish a unified holographic framework for the QCD phase structure across quark masses and baryon density, providing the first consistent and quantitative description of both deconfinement and chiral transitions within a single holographic model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_11273 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Toward a holographic realization of the 2+1-flavor QCD phase structure Shen, Jin-Yang Liu, Xin-Yi Wu, Jin-Rui Wu, Yue-Liang Fang, Zhen High Energy Physics - Phenomenology We present a fully back-reacted Einstein--Maxwell--Dilaton--flavor model with dynamical light and strange sectors, calibrated to lattice QCD using a machine-learning--assisted spectral method. The model reproduces the 2+1-flavor equation of state and chiral dynamics with quantitative accuracy, and maps the Columbia plot with a tri-critical point at $m_s^{\mathrm{tri}} \simeq 21~\text{MeV}$ and a critical mass $m_c \simeq 0.785~\text{MeV}$, consistent with lattice results. At finite density, it yields a crossover-to-first-order transition and predicts a critical endpoint at $T_C = 75.4~\text{MeV}$ and $μ_C = 768~\text{MeV}$, within the reach of heavy-ion experiments. These findings establish a unified holographic framework for the QCD phase structure across quark masses and baryon density, providing the first consistent and quantitative description of both deconfinement and chiral transitions within a single holographic model. |
| title | Toward a holographic realization of the 2+1-flavor QCD phase structure |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2511.11273 |