The underlying black hole phase transitions in an Einstein-Maxwell-dilaton model with a holographic critical point
Abstract The Einstein-Maxwell-dilaton model exhibits a first-order phase transition curve that terminates at a holographic critical endpoint, offering intriguing insights into the phase diagram of the dual system living on the boundary. However, the specific instability within the underlying spaceti...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-06-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP06(2025)142 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849238036725891072 |
|---|---|
| author | Hong Guo Xiao-Mei Kuang Wei-Liang Qian |
| author_facet | Hong Guo Xiao-Mei Kuang Wei-Liang Qian |
| author_sort | Hong Guo |
| collection | DOAJ |
| description | Abstract The Einstein-Maxwell-dilaton model exhibits a first-order phase transition curve that terminates at a holographic critical endpoint, offering intriguing insights into the phase diagram of the dual system living on the boundary. However, the specific instability within the underlying spacetime that triggers the formation of the hairy black hole remains somewhat obscure. This raises the question of whether one of the hairy black hole phases represents a superconducting or scalarized state and how the two distinct phases merge into a indistinguishable one at the critical point. This work investigates the associated black hole phase transition and the underlying instabilities by exploring a specific Einstein-Maxwell-dilaton model. The approach aims to provide transparent insights into the black hole phase transitions in the bulk. By introducing a nonminimal coupling between a massive real scalar field and a Maxwell field in a five-dimensional anti-de Sitter spacetime, we identify two types of scalarization corresponding to tachyonic instabilities in the ultraviolet and infrared regions. These distinct instabilities lead to a first-order phase transition between two phases in the μ – T phase diagram. Furthermore, this first-order transition terminates at a critical point, beyond which the curve turns back, and the transition becomes a numerically elusive third-order one. Although one does not encounter a critical endpoint, the model still offers a consistent interpretation for the observed cross-over in the low baryon density region. We analyze the thermodynamic properties of the scalarized hairy black holes and discuss the implications of our findings. |
| format | Article |
| id | doaj-art-f26c7bb5afc04bfba91b09878b3bbd83 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-f26c7bb5afc04bfba91b09878b3bbd832025-08-20T04:01:47ZengSpringerOpenJournal of High Energy Physics1029-84792025-06-012025612410.1007/JHEP06(2025)142The underlying black hole phase transitions in an Einstein-Maxwell-dilaton model with a holographic critical pointHong Guo0Xiao-Mei Kuang1Wei-Liang Qian2Escola de Engenharia de Lorena, Universidade de São PauloCenter for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou UniversityEscola de Engenharia de Lorena, Universidade de São PauloAbstract The Einstein-Maxwell-dilaton model exhibits a first-order phase transition curve that terminates at a holographic critical endpoint, offering intriguing insights into the phase diagram of the dual system living on the boundary. However, the specific instability within the underlying spacetime that triggers the formation of the hairy black hole remains somewhat obscure. This raises the question of whether one of the hairy black hole phases represents a superconducting or scalarized state and how the two distinct phases merge into a indistinguishable one at the critical point. This work investigates the associated black hole phase transition and the underlying instabilities by exploring a specific Einstein-Maxwell-dilaton model. The approach aims to provide transparent insights into the black hole phase transitions in the bulk. By introducing a nonminimal coupling between a massive real scalar field and a Maxwell field in a five-dimensional anti-de Sitter spacetime, we identify two types of scalarization corresponding to tachyonic instabilities in the ultraviolet and infrared regions. These distinct instabilities lead to a first-order phase transition between two phases in the μ – T phase diagram. Furthermore, this first-order transition terminates at a critical point, beyond which the curve turns back, and the transition becomes a numerically elusive third-order one. Although one does not encounter a critical endpoint, the model still offers a consistent interpretation for the observed cross-over in the low baryon density region. We analyze the thermodynamic properties of the scalarized hairy black holes and discuss the implications of our findings.https://doi.org/10.1007/JHEP06(2025)142AdS-CFT CorrespondenceEffective Field Theories of QCDPhase Diagram or Equation of State |
| spellingShingle | Hong Guo Xiao-Mei Kuang Wei-Liang Qian The underlying black hole phase transitions in an Einstein-Maxwell-dilaton model with a holographic critical point Journal of High Energy Physics AdS-CFT Correspondence Effective Field Theories of QCD Phase Diagram or Equation of State |
| title | The underlying black hole phase transitions in an Einstein-Maxwell-dilaton model with a holographic critical point |
| title_full | The underlying black hole phase transitions in an Einstein-Maxwell-dilaton model with a holographic critical point |
| title_fullStr | The underlying black hole phase transitions in an Einstein-Maxwell-dilaton model with a holographic critical point |
| title_full_unstemmed | The underlying black hole phase transitions in an Einstein-Maxwell-dilaton model with a holographic critical point |
| title_short | The underlying black hole phase transitions in an Einstein-Maxwell-dilaton model with a holographic critical point |
| title_sort | underlying black hole phase transitions in an einstein maxwell dilaton model with a holographic critical point |
| topic | AdS-CFT Correspondence Effective Field Theories of QCD Phase Diagram or Equation of State |
| url | https://doi.org/10.1007/JHEP06(2025)142 |
| work_keys_str_mv | AT hongguo theunderlyingblackholephasetransitionsinaneinsteinmaxwelldilatonmodelwithaholographiccriticalpoint AT xiaomeikuang theunderlyingblackholephasetransitionsinaneinsteinmaxwelldilatonmodelwithaholographiccriticalpoint AT weiliangqian theunderlyingblackholephasetransitionsinaneinsteinmaxwelldilatonmodelwithaholographiccriticalpoint AT hongguo underlyingblackholephasetransitionsinaneinsteinmaxwelldilatonmodelwithaholographiccriticalpoint AT xiaomeikuang underlyingblackholephasetransitionsinaneinsteinmaxwelldilatonmodelwithaholographiccriticalpoint AT weiliangqian underlyingblackholephasetransitionsinaneinsteinmaxwelldilatonmodelwithaholographiccriticalpoint |