Instability of baryonic black branes
Abstract Baryonic black branes describe the quantum critical phase of the conformal conifold gauge theory at strong coupling. This phase extends to zero temperature at a finite baryonic chemical potential, represented by extremal black branes with AdS 2×R 3×T 1,1 throat in asymptotic AdS 5 × T 1,1 g...
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2025-05-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP05(2025)215 |
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| author | Alex Buchel |
| author_facet | Alex Buchel |
| author_sort | Alex Buchel |
| collection | DOAJ |
| description | Abstract Baryonic black branes describe the quantum critical phase of the conformal conifold gauge theory at strong coupling. This phase extends to zero temperature at a finite baryonic chemical potential, represented by extremal black branes with AdS 2×R 3×T 1,1 throat in asymptotic AdS 5 × T 1,1 geometry. We demonstrate here that this phase is dynamically unstable below some critical value of T c /μ: the instability is represented by a diffusive mode in the hydrodynamic sound channel with a negative diffusion coefficient. We also identify a new (exotic) ordered phase of the conifold gauge theory: this phase originates at the same critical value of T c /μ, but extends to arbitrary high temperatures, and is characterized by an expectation value of a dimension-2 operator, O 2 $$ {\mathcal{O}}_2 $$ ∝ T 2, in the limit μ T $$ \frac{\mu }{T} $$ → 0. |
| format | Article |
| id | doaj-art-a9e6d06e3309437e8aeeafc4db6e9d22 |
| institution | DOAJ |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-a9e6d06e3309437e8aeeafc4db6e9d222025-08-20T03:10:28ZengSpringerOpenJournal of High Energy Physics1029-84792025-05-012025512510.1007/JHEP05(2025)215Instability of baryonic black branesAlex Buchel0Department of Physics and Astronomy, University of Western OntarioAbstract Baryonic black branes describe the quantum critical phase of the conformal conifold gauge theory at strong coupling. This phase extends to zero temperature at a finite baryonic chemical potential, represented by extremal black branes with AdS 2×R 3×T 1,1 throat in asymptotic AdS 5 × T 1,1 geometry. We demonstrate here that this phase is dynamically unstable below some critical value of T c /μ: the instability is represented by a diffusive mode in the hydrodynamic sound channel with a negative diffusion coefficient. We also identify a new (exotic) ordered phase of the conifold gauge theory: this phase originates at the same critical value of T c /μ, but extends to arbitrary high temperatures, and is characterized by an expectation value of a dimension-2 operator, O 2 $$ {\mathcal{O}}_2 $$ ∝ T 2, in the limit μ T $$ \frac{\mu }{T} $$ → 0.https://doi.org/10.1007/JHEP05(2025)215AdS-CFT CorrespondenceGauge-Gravity CorrespondenceHolography and Hydrodynamics |
| spellingShingle | Alex Buchel Instability of baryonic black branes Journal of High Energy Physics AdS-CFT Correspondence Gauge-Gravity Correspondence Holography and Hydrodynamics |
| title | Instability of baryonic black branes |
| title_full | Instability of baryonic black branes |
| title_fullStr | Instability of baryonic black branes |
| title_full_unstemmed | Instability of baryonic black branes |
| title_short | Instability of baryonic black branes |
| title_sort | instability of baryonic black branes |
| topic | AdS-CFT Correspondence Gauge-Gravity Correspondence Holography and Hydrodynamics |
| url | https://doi.org/10.1007/JHEP05(2025)215 |
| work_keys_str_mv | AT alexbuchel instabilityofbaryonicblackbranes |