3171 papers
Hep-Th, or high-energy theoretical physics, explores the fundamental building blocks of our universe and the forces that govern them. Researchers in this field use complex mathematics to understand everything from subatomic particles to the behavior of black holes, often pushing the boundaries of what we know about space and time.
At Gist.Science, we monitor the arXiv repository to ensure you stay ahead of the curve in this rapidly evolving discipline. For every new preprint uploaded to arXiv under this category, our team generates both accessible plain-language overviews and detailed technical summaries, making cutting-edge research understandable regardless of your background.
Below are the latest papers in high-energy theoretical physics, curated to help you navigate the most significant recent discoveries.
This paper investigates the moduli space of multi-fractional instantons on a twisted by demonstrating that 't Hooft's constant field strength solutions constitute the entire moduli space only when , whereas for , they represent a measure-zero subset surrounded by non-constant, non-abelian solutions, a finding that resolves a recent puzzle and is validated through analytical, numerical, and lattice comparisons.
This paper utilizes an open quantum system formalism to calculate the inflaton four-point correlation function in axion inflation, demonstrating that the derived parity-odd expansion coefficients in the large limit not only confirm parity violation but also align with recent observational data from galaxy surveys.
This paper investigates how theoretical priors and the choice of parametrisation significantly influence observational constraints on dark energy and modified gravity, comparing phenomenological and effective field theory approaches to distinguish physical models from unphysical ones.
While shift-symmetric Horndeski and generalized Proca theories struggle to accommodate the phantom-divide crossing suggested by DESI, CMB, and SN Ia data without theoretical pathologies, the authors demonstrate that breaking shift symmetry in Horndeski theories enables a stable model with a scalar potential and Galileon interactions that successfully realizes this transition at low redshifts.
This paper formulates interacting antisymmetric tensor gauge theories within a symplectic configuration space of dual field strengths, where field equations are defined as the intersection of specific submanifolds and Chern-Simons interactions impart a non-trivial global structure, as demonstrated in a six-dimensional 3-form coupled to Yang-Mills theory.
This paper uncovers a universal soft behavior in de Sitter space that unifies all exceptional effective field theories by demonstrating that a generalized energy conservation condition fixes their scattering amplitudes, thereby characterizing these theories solely through their spectrum and stability requirements.
This paper proposes a modified hybrid inflation model where a "softened" stiff period driven by the waterfall field resolves the Big Bang Nucleosynthesis constraints on primordial gravitational wave energy density while still producing a characteristic, observable gravitational wave spectrum.
This paper argues that holographic consistency conditions, such as the convexity of the CFT spectrum and the averaged null energy condition, provide a geometric realization of Swampland constraints on quantum gravity, suggesting that these conjectures are manifestations of deeper holographic principles.
This paper formulates matter-coupled scaling-Carroll gravity as a gauge theory and demonstrates that specific gauge choices and geometric constraints reveal distinct physical regimes, including dynamical Carroll gravity, Aristotelian gravity, and a fracton gauge theory where the Carroll boost parameter functions as a vector-charge gauge symmetry.
This paper constructs universal characteristic identities and explicit invariant projectors for split Casimir operators in tensor products involving defining and specific Cartan power representations across all simple Lie algebras (except ), expressing these results in terms of Vogel parameters to derive universal dimension formulas.