Nuclear Physics B最新文献_第5页

Non-commutative Schwarzschild black hole surrounded by Perfect fluid dark matter: Plasma lensing and thermodynamics analysis 被完美流体暗物质包围的非交换性施瓦兹柴尔德黑洞：等离子体透镜和热力学分析

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-10-15 DOI: 10.1016/j.nuclphysb.2024.116713

Yihu Feng , Allah Ditta , G. Mustafa , S.K. Maurya , Asif Mahmood , Farruh Atamurotov

{"title":"Non-commutative Schwarzschild black hole surrounded by Perfect fluid dark matter: Plasma lensing and thermodynamics analysis","authors":"Yihu Feng , Allah Ditta , G. Mustafa , S.K. Maurya , Asif Mahmood , Farruh Atamurotov","doi":"10.1016/j.nuclphysb.2024.116713","DOIUrl":"10.1016/j.nuclphysb.2024.116713","url":null,"abstract":"<div><div>The focus of this paper is to examine the properties of thermodynamics and weak gravitational lensing about the geometry of black holes within the context of a non-commutative Schwarzschild black hole surrounded by Perfect fluid dark matter. We examine the geometric mass and thermal temperature in this context to discuss the stability of the black hole solution. We examine the phase transition and stability while calculating the specific heat. We also research the black hole's energy emission process. We deduce that our researched black hole solution is thermally stable based on its thermodynamic features. Furthermore, we analyze uniform and non-uniform plasma by calculating the deflection angle, and we examine gravitational lensing in the weak plasma field. It is observed that in uniform plasma, the deflection angle is larger than in non-uniform plasma. We also looked at the image magnification caused by source brightness and found that the source image is enlarged more in uniform plasma than in non-uniform plasma.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1008 ","pages":"Article 116713"},"PeriodicalIF":2.5,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142530181","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}

引用次数: 0

Horizon replicas in black hole shadows 黑洞阴影中的地平线复制品

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-10-09 DOI: 10.1016/j.nuclphysb.2024.116700

D. Pugliese , H. Quevedo

引用次数: 0

Five-dimensional compact stars in Einstein-Gauss-Bonnet gravity 爱因斯坦-高斯-波奈引力中的五维紧凑星体

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-10-09 DOI: 10.1016/j.nuclphysb.2024.116702

Juan M.Z. Pretel , Ayan Banerjee , Anirudh Pradhan

引用次数: 0

Black holes, complex curves, and graph theory: Revising a conjecture by Kasner 黑洞、复曲线和图论：修正卡斯纳的猜想

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-10-09 DOI: 10.1016/j.nuclphysb.2024.116711

Yen Chin Ong

{"title":"Black holes, complex curves, and graph theory: Revising a conjecture by Kasner","authors":"Yen Chin Ong","doi":"10.1016/j.nuclphysb.2024.116711","DOIUrl":"10.1016/j.nuclphysb.2024.116711","url":null,"abstract":"<div><div>The ratios <span><math><msqrt><mrow><mn>8</mn><mo>/</mo><mn>9</mn></mrow></msqrt><mo>=</mo><mn>2</mn><msqrt><mrow><mn>2</mn></mrow></msqrt><mo>/</mo><mn>3</mn><mo>≈</mo><mn>0.9428</mn></math></span> and <span><math><msqrt><mrow><mn>3</mn></mrow></msqrt><mo>/</mo><mn>2</mn><mo>≈</mo><mn>0.866</mn></math></span> appear in various contexts of black hole physics, as values of the charge-to-mass ratio <span><math><mi>Q</mi><mo>/</mo><mi>M</mi></math></span> or the rotation parameter <span><math><mi>a</mi><mo>/</mo><mi>M</mi></math></span> for Reissner-Nordström and Kerr black holes, respectively. In this work, in the Reissner-Nordström case, I relate these ratios with the quantization of the horizon area, or equivalently of the entropy. Furthermore, these ratios are related to a century-old work of Kasner, in which he conjectured that certain sequences arising from complex analysis may have a quantum interpretation. These numbers also appear in the case of Kerr black holes, but the explanation is not as straightforward. The Kasner ratio may also be relevant for understanding the random matrix and random graph approaches to black hole physics, such as fast scrambling of quantum information, via a bound related to Ramanujan graph. Intriguingly, some other pure mathematical problems in complex analysis, notably complex interpolation in the unit disk, appear to share some mathematical expressions with the black hole problem and thus also involve the Kasner ratio.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1008 ","pages":"Article 116711"},"PeriodicalIF":2.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434438","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}

引用次数: 0

Mass superinflation in the Reissner-Nordström black hole 赖斯纳-诺德斯特伦黑洞的质量超膨胀

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-10-09 DOI: 10.1016/j.nuclphysb.2024.116712

Nihar Ranjan Ghosh, Malay K. Nandy

{"title":"Mass superinflation in the Reissner-Nordström black hole","authors":"Nihar Ranjan Ghosh, Malay K. Nandy","doi":"10.1016/j.nuclphysb.2024.116712","DOIUrl":"10.1016/j.nuclphysb.2024.116712","url":null,"abstract":"<div><div>Ever since Penrose and Simpson's prediction contradicted Novikov's idea that an infalling person would emerge into an asymptotically flat universe, there have been a continued interest in predicting the nature of singularity at the inner horizon of a Reissner-Nordström black hole. This prediction was first confirmed by Poisson and Israel using cross-stream of massless particles, leading to the phenomenon coined as <em>mass inflation</em>. On the other hand, Ori obtained a weaker singularity using a null shell of radiation. Thus it is important to capture the nature of singularity at the inner horizon. We therefore consider in this work a massive scalar field coupled to the Reissner-Nordström spacetime. The ensuing field equations lead to a coupled set of nonlinear dynamical equations. For definiteness, we analytically solve these equations employing the Adomian decomposition method. This facilitates in obtaining a <em>closed form</em> solution that exhibits an unbounded double-exponential growth in the mass function, giving rise to a novel phenomenon coined herein as <em>mass superinflation</em>. The scalar field is also found to undergo a very strong blueshift at the inner horizon.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1008 ","pages":"Article 116712"},"PeriodicalIF":2.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142446947","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}

引用次数: 0

Study of first-order quantum corrections of thermodynamics to a Dyonic black hole solution surrounded by a perfect fluid 被完美流体包围的戴奥尼克黑洞溶液的热力学一阶量子修正研究

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-10-09 DOI: 10.1016/j.nuclphysb.2024.116710

Riasat Ali , Xia Tiecheng , Rimsha Babar

{"title":"Study of first-order quantum corrections of thermodynamics to a Dyonic black hole solution surrounded by a perfect fluid","authors":"Riasat Ali , Xia Tiecheng , Rimsha Babar","doi":"10.1016/j.nuclphysb.2024.116710","DOIUrl":"10.1016/j.nuclphysb.2024.116710","url":null,"abstract":"<div><div>In this work, we review the metric for a dyonic global monopole with a perfect fluid. To calculate the standard temperature of a Dyonic black hole surrounded by a perfect fluid, we analyze the graphical interpretation of the Hawking temperature concerning the horizon under the effects of the black hole's surrounding field and electric-magnetic charges. For this purpose, we follow the semi-classical method, the Wentzel-Kramers-Brillouin (WKB) approximation, and the Lagrangian equation in the presence of quantum gravity as seen in the generalized uncertainty principle (GUP). We calculate the improved temperature of a Dyonic black hole using a bosonic tunneling strategy based on the Hamilton-Jacobi technique. We observe that the physical state of the Dyonic black hole is surrounded by a perfect fluid under the effects of the black hole solution and the gravity parameter. Further, we examine the improved entropy to study the influences of quantum gravity and black hole geometry on entropy. We explore the graphical behavior of entropy based on the black hole's horizon structure and analyze the influence of perfect fluid parameters, electric charge, magnetic charge, and quantum gravity on entropy. Finally, we investigate the unstable and stable conditions of a black hole via graphical results.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1008 ","pages":"Article 116710"},"PeriodicalIF":2.5,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142420956","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}

引用次数: 0

Erratum to “Dark boson mediation of the π0 → γe+e− decay” [Nucl. Phys. B 978 (2022) 115723] 对 "暗玻色子对π0 → γe+e-衰变的中介作用 "的勘误 [Nucl.

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-10-05 DOI: 10.1016/j.nuclphysb.2024.116709

M. Naydenov, V. Kozhuharov

引用次数: 0

Tachyons in “momentum-space” representation 动量-空间 "表示法中的超速子

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-10-03 DOI: 10.1016/j.nuclphysb.2024.116708

V. Aldaya , J. Guerrero , F.F. López-Ruiz

{"title":"Tachyons in “momentum-space” representation","authors":"V. Aldaya , J. Guerrero , F.F. López-Ruiz","doi":"10.1016/j.nuclphysb.2024.116708","DOIUrl":"10.1016/j.nuclphysb.2024.116708","url":null,"abstract":"<div><div>Obtaining the momentum space associated with tachyonic “particles” from the Poincaré group manifold proves to be rather intricate, departing very much from the ordinary dual to Minkowski space directly parametrized by space-time translations of the Poincaré group. In fact, although described by the constants of motion (Noether invariants) associated with space-time translations, they depend non-trivially on the parameters of the rotation subgroup. However, once the momentum space is parametrized by the Noether invariants, it behaves as that of ordinary particles. On the other hand, the evolution parameter is no longer the one associated with time translation, whose Noether invariant, <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>o</mi></mrow></msub></math></span>, is now a basic one. Evolution takes place in a spatial direction. These facts not only make difficult the computation of the corresponding representation, but also force us to a sound revision of several traditional ingredients related to Cauchy hypersurface, scalar product and, of course, causality. After that, the theory becomes consistent and could shed new light on some special physical situations like inflation or traveling inside a black hole.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1008 ","pages":"Article 116708"},"PeriodicalIF":2.5,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142420952","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}

引用次数: 0

An integrability illusion: Vanishing transfer matrices associated with generalised Gaudin superalgebras 可整性幻觉与广义高定超代数相关的消失转移矩阵

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-10-03 DOI: 10.1016/j.nuclphysb.2024.116706

Mitchell Jones, Phillip S. Isaac, Jon Links

引用次数: 0

Field transformations in functional integral, effective action and functional flow equations 函数积分、有效作用和函数流方程中的场变换

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-10-02 DOI: 10.1016/j.nuclphysb.2024.116707

C. Wetterich

引用次数: 0