Nuclear Physics B最新文献_第6页

Asymptotic bound on slow-roll parameter in stringy quintessence model 弦质五弦模型中慢滚参数的渐近约束

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-10-01 DOI: 10.1016/j.nuclphysb.2024.116705

Min-Seok Seo

引用次数: 0

A∞ perspective to Sen's formalism 从一个∞角度看森的形式主义

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-09-30 DOI: 10.1016/j.nuclphysb.2024.116691

Atakan Hilmi Fırat

引用次数: 0

On a new class of non-dynamical ABCD algebras for classical and quantum integrable systems 论经典和量子可积分系统的一类新的非动力学 ABCD 矩阵

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-09-30 DOI: 10.1016/j.nuclphysb.2024.116685

T. Skrypnyk

{"title":"On a new class of non-dynamical ABCD algebras for classical and quantum integrable systems","authors":"T. Skrypnyk","doi":"10.1016/j.nuclphysb.2024.116685","DOIUrl":"10.1016/j.nuclphysb.2024.116685","url":null,"abstract":"<div><div>We consider classical and quantum non-dynamical quadratic <math><mi>a</mi><mi>b</mi><mi>c</mi><mi>d</mi></math> Lax algebras with classical and quantum <math><mi>g</mi><mi>l</mi><mo>(</mo><mi>n</mi><mo>)</mo><mo>⊗</mo><mi>g</mi><mi>l</mi><mo>(</mo><mi>n</mi><mo>)</mo></math>-valued <math><mi>a</mi><mi>b</mi><mi>c</mi><mi>d</mi></math>-tensors satisfying a set of quadratic non-dynamical Yang-Baxter-type equations generalizing those of Fredel and Maillet [1]. We establish a relation of some of these equations with the so-called “semi-dynamical” Yang-Baxter equations of [2]. We show that the linearization of the corresponding quadratic structures lead to linear tensor structures with the classical <math><mi>g</mi><mi>l</mi><mo>(</mo><mi>n</mi><mo>)</mo><mo>⊗</mo><mi>g</mi><mi>l</mi><mo>(</mo><mi>n</mi><mo>)</mo></math>-valued r-matrices satisfying usual “permuted” classical Yang-Baxter equations [1], [3], [4], [5]. We consider example of our construction associated with the deformed <math><msub><mrow><mi>Z</mi></mrow><mrow><mi>n</mi></mrow></msub></math>-graded r-matrix of [9], [10], [11] and explicitly construct the corresponding <math><mi>a</mi><mi>b</mi><mi>c</mi><mi>d</mi></math>-tensors — both classical and quantum. Small n examples are also considered in some details.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1008 ","pages":"Article 116685"},"PeriodicalIF":2.5,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142420953","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

Accelerating Kerr-Taub-NUT spacetime in the low energy limit of heterotic string theory 加速异质弦理论低能极限中的克尔-陶布-努特时空

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-09-27 DOI: 10.1016/j.nuclphysb.2024.116704

Haryanto M. Siahaan

引用次数: 0

Interactions in the IKKT matrix model on covariant quantum spacetime 协变量子时空中 IKKT 矩阵模型中的相互作用

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-09-27 DOI: 10.1016/j.nuclphysb.2024.116693

Harold C. Steinacker, Tung Tran

引用次数: 0

Topological properties of black holes in five-dimensional gauged supergravity 五维测量超引力中黑洞的拓扑特性

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-09-27 DOI: 10.1016/j.nuclphysb.2024.116683

Yucheng He, Changxiang Lei, Deyou Chen

引用次数: 0

Moving holographic boundaries 移动全息边界

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-09-26 DOI: 10.1016/j.nuclphysb.2024.116699

Meseret Asrat

{"title":"Moving holographic boundaries","authors":"Meseret Asrat","doi":"10.1016/j.nuclphysb.2024.116699","DOIUrl":"10.1016/j.nuclphysb.2024.116699","url":null,"abstract":"<div><div>In this paper, we show that for one sign of the deformation coupling single-trace <math><mi>T</mi><mover><mrow><mi>T</mi></mrow><mo>‾</mo></mover></math> deformation moves the holographic screen in Gödel universe radially inward. For the other sign of the coupling it moves the holographic screen radially outward. We (thus) argue, on general grounds, that in holography (single-trace) <math><mi>T</mi><mover><mrow><mi>T</mi></mrow><mo>‾</mo></mover></math> deformation can be generally thought of as either moving the holographic boundary into the bulk or washing it away to infinity. We explain in what sense. In Anti-de Sitter this breaks the spacetime conformal symmetry. We further note that moving timelike holographic boundary into bulk creates (at onset) a curvature singularity. In the boundary the singularity is understood by states with imaginary energies. To define or make the bulk theory sensible we introduce an ultraviolet cutoff and thereby move the boundary into the bulk. However, it is not clear whether suitable boundary conditions that lead to a consistent string theory exist. In this paper we first obtain the Penrose limit of the single-trace <math><mi>T</mi><mover><mrow><mi>T</mi></mrow><mo>‾</mo></mover></math> deformed string background and then perform T-duality along a space-like isometry to obtain a class of deformed Gödel universes. The string background we consider is <math><mi>A</mi><mi>d</mi><msub><mrow><mi>S</mi></mrow><mrow><mn>3</mn></mrow></msub><mo>×</mo><msup><mrow><mi>S</mi></mrow><mrow><mn>3</mn></mrow></msup><mo>×</mo><msub><mrow><mi>M</mi></mrow><mrow><mn>4</mn></mrow></msub></math>. The single-trace <math><mi>T</mi><mover><mrow><mi>T</mi></mrow><mo>‾</mo></mover></math> deformation is a particular example of the more general <math><mi>O</mi><mo>(</mo><mi>d</mi><mo>,</mo><mi>d</mi><mo>)</mo></math> transformations.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1008 ","pages":"Article 116699"},"PeriodicalIF":2.5,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142327108","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

Exploring the macroscopic properties of proto-neutron stars: Effects of entropy and lepton fraction 探索原中子星的宏观特性：熵和轻子分数的影响

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-09-26 DOI: 10.1016/j.nuclphysb.2024.116697

Sayantan Ghosh , Shahebaj Shaikh , Probit J. Kalita , Pinku Routaray , Bharat Kumar , B.K. Agrawal

{"title":"Exploring the macroscopic properties of proto-neutron stars: Effects of entropy and lepton fraction","authors":"Sayantan Ghosh , Shahebaj Shaikh , Probit J. Kalita , Pinku Routaray , Bharat Kumar , B.K. Agrawal","doi":"10.1016/j.nuclphysb.2024.116697","DOIUrl":"10.1016/j.nuclphysb.2024.116697","url":null,"abstract":"<div><div>Neutron stars (NSs) have generally been considered as cold, zero-temperature entities. Recent progress in computational methods and theoretical modelling has opened up the exploration of finite temperature effects, marking an important research frontier. We examine the macroscopic properties of Proto-Neutron Stars (PNS) using different parametrizations of relativistic mean field (RMF) models. We adopt a constant entropy approach by fixing entropy per baryon, <math><mi>S</mi><mo>=</mo><mn>1</mn></math> and 2. Higher S elevates the maximum mass for PNS and flattens the mass-radius curves. The higher lepton fraction (<math><msub><mrow><mi>Y</mi></mrow><mrow><mi>l</mi></mrow></msub></math>) leads to a decrease in maximum mass and an increase in the canonical radius. Furthermore, both the S and <math><msub><mrow><mi>Y</mi></mrow><mrow><mi>l</mi></mrow></msub></math> influence the dimensionless tidal deformability (Λ). We note that the f-mode frequencies in PNSs increase as S decreases and the <math><msub><mrow><mi>Y</mi></mrow><mrow><mi>l</mi></mrow></msub></math> increases at maximum mass. We find that the macroscopic properties of the PNS exhibit the same trend, irrespective of the parameter sets employed for the variation of S and <math><msub><mrow><mi>Y</mi></mrow><mrow><mi>l</mi></mrow></msub></math>.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1008 ","pages":"Article 116697"},"PeriodicalIF":2.5,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142358957","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

Neutral pion polarizabilities from four-point functions in lattice QCD 网格 QCD 中四点函数的中性极化率

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-09-26 DOI: 10.1016/j.nuclphysb.2024.116701

Frank X. Lee , Walter Wilcox , Andrei Alexandru , Chris Culver , Shayan Nadeem

引用次数: 0

Probing neutrino-nucleus interaction in DUNE and MicroBooNE 在 DUNE 和 MicroBooNE 中探测中微核相互作用

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2024-09-26 DOI: 10.1016/j.nuclphysb.2024.116703

R. Lalnuntluanga, R.K. Pradhan, A. Giri

引用次数: 0