{"title":"Issue Information: Fortschritte der Physik 9–10 / 2025","authors":"","doi":"10.1002/prop.70043","DOIUrl":"https://doi.org/10.1002/prop.70043","url":null,"abstract":"","PeriodicalId":55150,"journal":{"name":"Fortschritte Der Physik-Progress of Physics","volume":"73 9-10","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/prop.70043","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145242857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohammad Ali S. Afshar, Mohammad Reza Alipour, Saeed Noori Gashti, Jafar Sadeghi
{"title":"A Deep Dive into Classical and Topological CFT Thermodynamics in Lifshitz and Hyperscaling Violating Black Holes","authors":"Mohammad Ali S. Afshar, Mohammad Reza Alipour, Saeed Noori Gashti, Jafar Sadeghi","doi":"10.1002/prop.70030","DOIUrl":"https://doi.org/10.1002/prop.70030","url":null,"abstract":"<p>To effectively utilize the AdS/CFT correspondence, a precise set of rules must be established to guide the translation of computed quantities in the gravitational sector into their CFT counterparts, and vice versa. This framework is commonly referred to as the holographic dictionary. The formulation of such dictionaries opens a two-way gateway, allowing researchers to extend theoretical principles and findings from one domain into the other for further exploration and study. The development of a holographic dictionary for Lifshitz black holes and hyperscaling violation (HSV) models has provided an essential foundation for studying CFT thermodynamics and phase behavior of these black holes. Based on this framework, the study will investigate their thermodynamic properties using two distinct approaches. In the first step, the work adopts the classical and traditional method, identifying critical points to examine the behavior of the free energy function as a function of temperature near the critical boundary. By analyzing its behavior, the work will study phase transitions and then proceed to evaluate the stability of the models. In the next step, to compare both methodologies and highlight their equivalence—particularly demonstrating the accessibility of the topological method compared to the classical approach—the study will analyze phase behavior through the lens of topological charges.</p>","PeriodicalId":55150,"journal":{"name":"Fortschritte Der Physik-Progress of Physics","volume":"73 9-10","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Probing the Black Hole Interior with Holographic Entanglement Entropy and the Role of AdS/BCFT Correspondence","authors":"Fabiano F. Santos","doi":"10.1002/prop.70031","DOIUrl":"https://doi.org/10.1002/prop.70031","url":null,"abstract":"<p>This work is explored the black hole information loss paradox, a fundamental challenge in theoretical physics. Insights are proposed using Holographic Entanglement Entropy (HEE) and the AdS/BCFT correspondence within Horndeski gravity. The work is revisited the time-dependent behavior of HEE to probe black hole interiors and examines its implications for the Page curve, which is described the entropy evolution of Hawking radiation. The relationship between conformal field theory (CFT) microstates and black hole thermodynamics through the AdS/BCFT correspondence is also discussed, suggesting that only a subset of microstates corresponds to black holes with smooth interiors, while others may involve firewalls. Black hole thermal entropy is extended to time-dependent entanglement entropy, offering a perspective on the interplay between quantum mechanics, thermodynamics, and gravity.</p>","PeriodicalId":55150,"journal":{"name":"Fortschritte Der Physik-Progress of Physics","volume":"73 9-10","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/prop.70031","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Landscape of Narain CFTs","authors":"Rajae Sammani, El Hassan Saidi, Rachid Ahl Laamara, Lalla Btissam Drissi","doi":"10.1002/prop.70029","DOIUrl":"https://doi.org/10.1002/prop.70029","url":null,"abstract":"<p>In this work, the <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>AdS</mi>\u0000 <mn>3</mn>\u0000 </msub>\u0000 <annotation>${rm AdS}_{3}$</annotation>\u0000 </semantics></math> gravitational bulk dual to an ensemble of Narain CFTs and their generalisations is investigated to establish bounds consistent with the Swampland program. Focusing on the AdS distance and finiteness conjectures, the central charge of Narain CFTs forming the ensemble is shown to be finite. Combining anomaly and unitary requirements, an upper bound on the rank of the abelian U(1) gauge symmetries that can consistently couple to the <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>AdS</mi>\u0000 <mn>3</mn>\u0000 </msub>\u0000 <annotation>${rm AdS}_{3}$</annotation>\u0000 </semantics></math> gravity is derived. Explicit realisations are given of these constraints by determining the range of the Chern–Simons level <span></span><math>\u0000 <semantics>\u0000 <msup>\u0000 <mi>k</mi>\u0000 <mi>G</mi>\u0000 </msup>\u0000 <annotation>$k^{G}$</annotation>\u0000 </semantics></math> corresponding to a bounded <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>AdS</mi>\u0000 <mn>3</mn>\u0000 </msub>\u0000 <annotation>${rm AdS}_{3}$</annotation>\u0000 </semantics></math> radius. Accordingly, the Narain landscape is finite with a number of admissible CFTs constrained as <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mn>3</mn>\u0000 <mo>/</mo>\u0000 <mn>2</mn>\u0000 <mo>≲</mo>\u0000 <mi>c</mi>\u0000 <mo>≲</mo>\u0000 <msup>\u0000 <mn>10</mn>\u0000 <mn>3</mn>\u0000 </msup>\u0000 </mrow>\u0000 <annotation>$3/2lesssim clesssim 10^{3}$</annotation>\u0000 </semantics></math>.</p>","PeriodicalId":55150,"journal":{"name":"Fortschritte Der Physik-Progress of Physics","volume":"73 9-10","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Exploring Hybrid Star Models With Quark and Hadronic Matter in \u0000 \u0000 \u0000 f\u0000 (\u0000 Q\u0000 )\u0000 \u0000 $f(Q)$\u0000 Gravity","authors":"M. Sharif, Madiha Ajmal","doi":"10.1002/prop.70028","DOIUrl":"https://doi.org/10.1002/prop.70028","url":null,"abstract":"<p>A static anisotropic hybrid star model is developed that includes strange quark matter and hadronic matter. The field equations are solved in the <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>f</mi>\u0000 <mo>(</mo>\u0000 <mi>Q</mi>\u0000 <mo>)</mo>\u0000 </mrow>\u0000 <annotation>$f(Q)$</annotation>\u0000 </semantics></math> gravity framework (where <span></span><math>\u0000 <semantics>\u0000 <mi>Q</mi>\u0000 <annotation>$Q$</annotation>\u0000 </semantics></math> is the non-metricity) using the Finch–Skea metric. The relationship between density and pressure for strange quark matter is described using the MIT bag model equation, while for hadronic matter, the radial pressure and density are related by a linear equation of state. The compact star EXO 1785-248 is selected and five different values of the coupling constant are analyzed. To evaluate the physical feasibility of the model, a graphical analysis is performed for key properties, including the metric components, energy density, radial and tangential pressures, anisotropy, gradients, quark matter density and pressure, the equation of state parameter, energy conditions and the mass function. Stability and equilibrium of the star are further examined through parameters such as compactness, redshift, causality conditions, Herrera cracking, the adiabatic index and the Tolman–Oppenheimer–Volkoff equation. The results indicated that <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>f</mi>\u0000 <mo>(</mo>\u0000 <mi>Q</mi>\u0000 <mo>)</mo>\u0000 </mrow>\u0000 <annotation>$f(Q)$</annotation>\u0000 </semantics></math> gravity effectively describes the macroscopic properties of hybrid stars.</p>","PeriodicalId":55150,"journal":{"name":"Fortschritte Der Physik-Progress of Physics","volume":"73 9-10","pages":""},"PeriodicalIF":7.8,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145243047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}