Nuclear Physics B最新文献

{"title":"Cosmological model in Finsler-Kropina geometrical framework with weak-field anisotropy and observational data","authors":"J. Praveen,&nbsp;S.K. Narasimhamurthy","doi":"10.1016/j.nuclphysb.2025.116992","DOIUrl":"10.1016/j.nuclphysb.2025.116992","url":null,"abstract":"<div><div>This study explores the role of Finsler geometry in cosmology incorporating weak-field anisotropy through the Finsler-Kropina framework and the osculating Riemannian metric approach. The model naturally modifies the spacetime structure introducing anisotropic effects that influence cosmic expansion and energy conservation. By deriving the modified Friedmann equations we test their observational viability using observational datasets including cosmic chronometers, baryon acoustic oscillations and the Pantheon+ supernovae dataset. The results from MCMC analysis show deviations from the ΛCDM model particularly in the evolution of the Hubble parameter, matter density, and dark energy density. Compared to ΛCDM, the anisotropic model predicts a lower matter density parameter <span><math><msub><mrow><mi>Ω</mi></mrow><mrow><mi>m</mi><mn>0</mn></mrow></msub></math></span> a reduced dark energy density <span><math><msub><mrow><mi>Ω</mi></mrow><mrow><mi>Λ</mi></mrow></msub></math></span>, and a nonzero spatial curvature <span><math><msub><mrow><mi>Ω</mi></mrow><mrow><mi>K</mi></mrow></msub></math></span> indicating fundamental geometric differences. The deceleration parameter <span><math><mi>q</mi><mo>(</mo><mn>0</mn><mo>)</mo><mo>=</mo><mo>−</mo><mn>0.57</mn><mo>±</mo><mn>0.001</mn></math></span> confirms an accelerated expansion with a transition redshift <span><math><msub><mrow><mi>z</mi></mrow><mrow><mi>t</mi><mi>r</mi></mrow></msub><mo>≈</mo><mn>0.77</mn></math></span>, aligning with observational estimates. The state-finder diagnostics reveal a transition from a Chaplygin gas-like phase to a quintessence regime before asymptotically approaching ΛCDM demonstrating a dynamic evolution influenced by anisotropic corrections. The <span><math><mi>O</mi><mi>m</mi><mo>(</mo><mi>z</mi><mo>)</mo></math></span> diagnostic suggests phantom-like behavior at higher redshifts gradually stabilizing towards ΛCDM at late times. We show that the geometry-induced effective dark energy term <span><math><msub><mrow><mi>Ω</mi></mrow><mrow><mi>ξ</mi></mrow></msub></math></span> can be interpreted as a geometric component of dark energy, effectively driving late-time acceleration without invoking additional exotic matter fields. These findings highlight the significance of Finsler geometry in extending standard cosmology and suggest that anisotropic effects provide a geometric interpretation of dark energy while maintaining consistency with observational constraints.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1018 ","pages":"Article 116992"},"PeriodicalIF":2.5,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144489888","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":"Thermodynamic topology of black hole in Massive gravity with generalized Barrow modification of entropy","authors":"Tehreem Aslam ,&nbsp;Muhammad Yasir ,&nbsp;Shahid Qaisar ,&nbsp;Faisal Javed ,&nbsp;Bander Almutairi","doi":"10.1016/j.nuclphysb.2025.116985","DOIUrl":"10.1016/j.nuclphysb.2025.116985","url":null,"abstract":"<div><div>The goal of our work is to explore the topology classifications of black holes in Massive gravity. We use Duan's <em>ϕ</em>-mapping theory to study the topology classes. This tool helps us to compute the integer numbers to characterize the topological features of the black hole. Our analysis is carried out across two different thermodynamic ensembles. These statistical ensembles are the canonical ensemble and the mixed canonical ensemble. Every ensemble corresponds to a different thermodynamic condition, allowing us to investigate how the black holes respond to other physical conditions. Thus, employing these analytical techniques, it is expected that further insights into topological and thermodynamic aspects of black holes in these modified gravity frameworks can be explored. This work helps to shed light on black hole dependencies on gravitational theories and conditions in thermal processes and thus expands the knowledge, proposing a new essence of black holes.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1018 ","pages":"Article 116985"},"PeriodicalIF":2.5,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365055","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":"Natural top quark condensation (a redux)","authors":"Christopher T. Hill","doi":"10.1016/j.nuclphysb.2025.116987","DOIUrl":"10.1016/j.nuclphysb.2025.116987","url":null,"abstract":"<div><div>The Nambu–Jona-Lasinio (NJL) model involves a pointlike 4-fermion interaction. While it gives a useful description of chiral dynamics (mainly in QCD), it nonetheless omits the crucially important internal wave-function of a two-body bound state, <span><math><mi>ϕ</mi><mo>(</mo><mi>r</mi><mo>)</mo></math></span>. This becomes significant near critical coupling where <span><math><mi>ϕ</mi><mo>(</mo><mi>r</mi><mo>)</mo></math></span> extends to large distance, leading to dilution and suppression of induced couplings <span><math><mo>∝</mo><mi>ϕ</mi><mo>(</mo><mn>0</mn><mo>)</mo></math></span>, such as the Yukawa and quartic couplings, as well as reduced fine-tuning of a hierarchy. In top quark condensation, where the Brout-Englert-Higgs (BEH) boson is a <span><math><mover><mrow><mi>t</mi></mrow><mo>‾</mo></mover><mi>t</mi></math></span> bound state and we have a UV completion such as topcolor, we must go beyond the NJL model and include effects of <span><math><mi>ϕ</mi><mo>(</mo><mi>r</mi><mo>)</mo></math></span>. We provide a formulation of this for the BEH boson, and find that it leads to an extended <span><math><mi>ϕ</mi><mo>(</mo><mi>r</mi><mo>)</mo></math></span>, a significantly reduced and natural composite scale of <span><math><msub><mrow><mi>M</mi></mrow><mrow><mn>0</mn></mrow></msub><mo>∼</mo><mn>6</mn></math></span> TeV, a successful prediction for the quartic coupling, <em>λ</em>, and fine–tuning that is reduced to a few percent, providing a compelling candidate solution to the naturalness problem of the BEH boson. The theory is testable and the associated new physics may soon emerge at LHC energy scales.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1018 ","pages":"Article 116987"},"PeriodicalIF":2.5,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144489885","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":"Effect of backreaction on island, Page curve and mutual information","authors":"Parul Jain ,&nbsp;Sanjay Pant ,&nbsp;Himanshu Parihar","doi":"10.1016/j.nuclphysb.2025.116991","DOIUrl":"10.1016/j.nuclphysb.2025.116991","url":null,"abstract":"<div><div>We compute the entanglement entropy of Hawking radiation in a bath attached to a deformed eternal AdS black hole. This black hole is dual to the two identical strongly coupled large-<span><math><msub><mrow><mi>N</mi></mrow><mrow><mi>c</mi></mrow></msub></math></span> thermal field theories, where each theory is backreacted (deformed) by the presence of a uniform static distribution of heavy fundamental quarks. In our observation we find that the entanglement entropy of Hawking radiation increases in a quadratic manner for an early time and linearly for the late time. The large time expression for the entanglement entropy of Hawking radiation is used to find the Page curve and Page time. After the Page time, the entanglement entropy saturates to a constant value due to the appearance of an island. We observe that introducing deformation (backreaction) delays the appearance of island and shifts the Page curve to a later time. Subsequently, the computation of the scrambling time reveals an increase with the backreaction parameter, suggesting a longer duration for information retrieval in the presence of deformation. Moreover, our analysis of the mutual information between the radiation subsystems shows that it vanishes at a critical time which increases with the deformation before the Page time. After the Page time, the appearance of island leads to the vanishing of mutual information between black hole subsystems and gives the time difference of the order of scrambling time.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1018 ","pages":"Article 116991"},"PeriodicalIF":2.5,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144489886","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":"Spatially flat FLRW spacetimes with a Big Bang from matrix geometry","authors":"Christian Gaß,&nbsp;Harold C. Steinacker","doi":"10.1016/j.nuclphysb.2025.116988","DOIUrl":"10.1016/j.nuclphysb.2025.116988","url":null,"abstract":"<div><div>We present an expanding, spatially flat (<span><math><mi>k</mi><mo>=</mo><mn>0</mn></math></span>) FLRW quantum spacetime with a Big Bang, considered as a background in Yang-Mills matrix models. The FLRW geometry emerges in the semi-classical limit as a projection from the fuzzy hyperboloid. We analyze the propagation of scalar fields, and demonstrate that their Feynman propagator resembles the Minkowski space Feynman propagator in the semi-classical regime. Moreover, the higher spin modes predicted by the matrix model are described explicitly. These results are compared to recent results on <span><math><mi>k</mi><mo>=</mo><mo>−</mo><mn>1</mn></math></span> FLRW quantum spacetimes with a Big Bounce.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1018 ","pages":"Article 116988"},"PeriodicalIF":2.5,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365066","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":"Unitarity constrains the quantum information metrics for particle interactions","authors":"Shanmuka Shivashankara,&nbsp;Hobbes Sprague","doi":"10.1016/j.nuclphysb.2025.116989","DOIUrl":"10.1016/j.nuclphysb.2025.116989","url":null,"abstract":"<div><div>Unitarity provides mathematical and physical constraints on quantum information systems. e.g., in entanglement swapping, unitarity requires the same von Neumann entanglement entropy generation for either a particle interaction or an act of measurement. For the first time, the language of non-relativistic quantum mechanics is presented to derive the density matrix for hard scattering. We show that unitarity allows for finding the latter's cross section without using the scattering amplitude or the Lippmann-Schwinger equation plus Green's function. We also show the language of relativistic quantum mechanics can be used to derive the momentum entropy or Sackur-Tetrode equation for the inelastic scattering of an electron from a proton. The latter entropy derives from a Shannon entropy and an additional entropy that evokes the uncertainty principle. This article's presentation allows particle physicists to readily begin calculating quantum information metrics such as correlations and mutual information for any particle interaction.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1018 ","pages":"Article 116989"},"PeriodicalIF":2.5,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365054","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":"Anisotropic compact stars in quadratic f(R) gravity and influence of quadratic parameter on properties of compact stars","authors":"Rajesh Kumar ,&nbsp;S.K. Maurya ,&nbsp;Y. Sekhmani ,&nbsp;Akram Ali ,&nbsp;Farruh Atamurotov","doi":"10.1016/j.nuclphysb.2025.116984","DOIUrl":"10.1016/j.nuclphysb.2025.116984","url":null,"abstract":"<div><div>In this article, we explore an anisotropic model to describe the Buchdahl compact star with a spherically symmetric matter distribution within the framework of modified <span><math><mi>f</mi><mo>(</mo><mi>R</mi><mo>)</mo></math></span> gravity. To achieve this, we consider the Starobinsky model <span><math><mi>f</mi><mo>(</mo><mi>R</mi><mo>)</mo><mo>=</mo><mi>R</mi><mo>+</mo><mi>α</mi><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span>, where <em>α</em> is a model parameter. To solve the Einstein Field equations, we adopt the embedded class-I geometry that satisfies the Karmarkar condition. Our analysis includes the generalized Darmois-Israel junction conditions, which are crucial for seamlessly matching the star's interior to the Schwarzschild exterior metric at the boundary in <span><math><mi>f</mi><mo>(</mo><mi>R</mi><mo>)</mo></math></span> gravity. These conditions have been employed to calculate the constant parameters by analyzing observational data from multiple compact stars, including <em>Cen X-3, PSR J1903+327, Vela X-1</em>, and <em>PSR J1614-2230</em>. This novel approach enables us to conduct a detailed analysis of Buchdahl compact star models and assess their physical viability. We also perform various physical tests, including equilibrium conditions and stability to evaluate the models' validity. The analysis of mass and radius reveals that the <span><math><mi>M</mi><mo>−</mo><mi>R</mi></math></span> relationship is based on the Buchdahl limit and is sensitive to variations in the parameter <em>α</em>. With <span><math><mi>α</mi><mo>=</mo><mn>0</mn></math></span> representing General Relativity, the maximum mass and radius for different <em>α</em> values were calculated and compared with observational data from the five aforementioned neutron stars. The range of maximum mass and radii are: <span><math><mo>[</mo><mn>2.51</mn><mo>−</mo><mn>2.54</mn><mspace></mspace><msub><mrow><mi>M</mi></mrow><mrow><mo>⊙</mo></mrow></msub><mo>]</mo></math></span> and <span><math><mn>8.71</mn><mo>−</mo><mn>9.33</mn><mspace></mspace><mtext>km</mtext></math></span>. The obtained values of radii align well with observed neutron star radii in X-ray binaries from spectroscopic studies, confirming the validity of the model.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1018 ","pages":"Article 116984"},"PeriodicalIF":2.5,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144322009","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":"The minimal cosmological standard model","authors":"Gabriela Barenboim ,&nbsp;Pyungwon Ko ,&nbsp;Wan-Il Park","doi":"10.1016/j.nuclphysb.2025.116983","DOIUrl":"10.1016/j.nuclphysb.2025.116983","url":null,"abstract":"<div><div>We propose a novel minimal scenario which simultaneously addresses the following theoretical/cosmological/phenomenological puzzles: (i) the origin of scales, (ii) primordial inflation, (iii) matter-antimatter asymmetry, (iv) tiny neutrino masses, (v) dark matter, and (vi) the strong CP-problem. Exact scale-symmetry was assumed. A global <span><math><mi>U</mi><msub><mrow><mo>(</mo><mn>1</mn><mo>)</mo></mrow><mrow><mi>PQ</mi></mrow></msub></math></span>-symmetry was also assumed but only in the matter sector. The novelty of the scenario is the introduction of explicit <span><math><mi>U</mi><msub><mrow><mo>(</mo><mn>1</mn><mo>)</mo></mrow><mrow><mi>PQ</mi></mrow></msub></math></span>-breaking terms with field-dependent coefficients in the gravity sector. Such a term does not disturb the axion solution whereas naturally realizes an axi-majoron hybrid inflation which allows a natural realization of Affleck-Dine mechanism for generating Peccei-Quinn number asymmetry. The asymmetry can be transferred to the visible sector via the right-handed neutrino portal through non-thermal decay and thermal processes, even without the presence of a CP-violating phase in the matter sector. Dark matter and dark radiation are obtained by cold and hot components of axi-majorons, respectively.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1018 ","pages":"Article 116983"},"PeriodicalIF":2.5,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144306888","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 Starobinsky-Bel-Robinson gravity: Gravitational lensing, thermodynamics, and orbital dynamics","authors":"Erdem Sucu,&nbsp;İzzet Sakallı","doi":"10.1016/j.nuclphysb.2025.116982","DOIUrl":"10.1016/j.nuclphysb.2025.116982","url":null,"abstract":"<div><div>This paper investigates the implications of Starobinsky-Bel-Robinson (SBR) gravity on gravitational lensing and geodesic dynamics around black holes. By incorporating higher-order curvature corrections through the Bel-Robinson tensor, we derive a modified spherically symmetric metric with a dimensionless coupling parameter <em>β</em> that significantly alters black hole properties. Applying the Gauss-Bonnet theorem, we calculate the weak deflection angle of light in both vacuum and plasma environments, demonstrating that increasing <em>β</em> enhances the bending of light, particularly in high-curvature regions. Our analysis reveals frequency-dependent effects in plasma media that could provide observational signatures distinguishing SBR gravity from general relativity. Additionally, we examine the stability of geodesic orbits using Lyapunov exponents and explore the concept of effective surface gravity through inaffinity analysis, showing how higher-curvature terms influence the behavior of particle trajectories near black holes. We also derive modified expressions for Hawking temperature, revealing how quantum corrections in SBR gravity affect black hole thermodynamics.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1018 ","pages":"Article 116982"},"PeriodicalIF":2.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144270265","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":"D-brane and exponential potentials inspire warm inflation and swampland conjecture","authors":"Shama Sadiq ,&nbsp;Nadeem Azhar ,&nbsp;N. Myrzakulov ,&nbsp;S. Toktarbay ,&nbsp;A. Muratkhan ,&nbsp;Sanjar Shaymatov ,&nbsp;Abdul Jawad","doi":"10.1016/j.nuclphysb.2025.116981","DOIUrl":"10.1016/j.nuclphysb.2025.116981","url":null,"abstract":"<div><div>This research explores the rapid expansion period of the early universe by applying the Chaplygin gas model, an alternative cosmological framework, to analyze the dynamics of inflationary processes. This study assesses the compatibility of three widely studied scalar field potentials with the latest observational constraints derived from the Planck datasets. Our analysis includes inflationary parameters such as slow-roll parameters, scalar power spectrum <span><math><msub><mrow><mi>P</mi></mrow><mrow><mi>R</mi></mrow></msub></math></span>, scalar spectral index <span><math><msub><mrow><mi>n</mi></mrow><mrow><mi>s</mi></mrow></msub></math></span>, dissipative ratio <em>R</em>, tensor-to-scalar ratio <em>r</em> and running of the scalar spectral index <span><math><mfrac><mrow><mi>d</mi><msub><mrow><mi>n</mi></mrow><mrow><mi>s</mi></mrow></msub></mrow><mrow><mi>d</mi><mi>ln</mi><mo>⁡</mo><mi>k</mi></mrow></mfrac></math></span>, within the theoretical frameworks of canonical scalar field dynamics and the Chaplygin gas cosmological model. These parameters help to paint a comprehensive picture of the inflationary epoch and its impact on the observable Universe. We also address the generalized ratio of the swampland de-Sitter conjecture through the expression of <span><math><mfrac><mrow><msup><mrow><mi>T</mi></mrow><mrow><mo>′</mo></mrow></msup><mi>V</mi></mrow><mrow><msup><mrow><mi>V</mi></mrow><mrow><mo>′</mo></mrow></msup><mi>T</mi></mrow></mfrac></math></span> for three different potentials. We analyze inflation driven by a scalar field <em>ϕ</em> with decay rate <span><math><mi>Γ</mi><mo>(</mo><mi>ϕ</mi><mo>,</mo><mi>T</mi><mo>)</mo><mo>=</mo><msub><mrow><mi>C</mi></mrow><mrow><mi>ϕ</mi></mrow></msub><mfrac><mrow><msup><mrow><mi>T</mi></mrow><mrow><mi>a</mi></mrow></msup></mrow><mrow><msup><mrow><mi>ϕ</mi></mrow><mrow><mi>a</mi><mo>−</mo><mn>1</mn></mrow></msup></mrow></mfrac></math></span>, where <span><math><msub><mrow><mi>C</mi></mrow><mrow><mi>ϕ</mi></mrow></msub></math></span> is a dimensionless coupling and <em>a</em> controls dissipation strength. Working in the strong dissipative regime (<span><math><mi>R</mi><mo>≫</mo><mn>1</mn></math></span>), we systematically investigate the background evolution and perturbation spectrum, deriving inflationary observables.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1018 ","pages":"Article 116981"},"PeriodicalIF":2.5,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280391","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}