4522 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 establishes a consistent renormalization framework within the Effective Field Theory of inflation that successfully cancels ultraviolet divergences and tadpoles for scale-dependent backgrounds with strong de Sitter symmetry breaking, demonstrating that the renormalized one-loop power spectrum vanishes at both large and small scales for resonant and sharp features while preserving perturbativity.
This paper proposes that dual magnetic charges in -form theories arise as non-trivial charges associated with the zero-modes of reducible translational gauge symmetries in a first-order BF theory formulation, thereby providing a new criterion for their existence and explaining the origin of their centrally-extended current algebra.
This paper introduces a path integral-based method to directly compute reduced density matrices in open quantum systems, applying it to a scalar field model and a neutrino toy model to demonstrate how initial Fock state correlations and lighter neutrino masses lead to significant distortions in particle number probabilities due to environmental interactions.
This paper introduces "cosmological dressing rules" that transform flat space Feynman diagrams into in-in correlators for conformally coupled and massless scalar theories in four-dimensional de Sitter space, thereby revealing a hidden simplicity linked to flat space scattering amplitudes while correctly reproducing infrared divergences predicted by the Schwinger-Keldysh formalism.
Motivated by recent DESI DR2 results suggesting evolving dark energy, this study analyzes spatially flat FLRW cosmological models with non-minimally coupled scalar fields in the Einstein frame, employing dynamical system methods to examine the evolution and stability of five specific scalar field models under various coupling parameters to understand energy transfer between the scalar sector and matter.
This paper demonstrates that fundamental quantum speed limits, traditionally viewed as computational constraints, can be operationally leveraged in a semi-device-independent prepare-and-measure scenario to generate certified randomness secure against adversaries, even without assumptions about the specific devices or Hamiltonians involved.
Using DESI DR2 BAO measurements, this paper constrains a model of interacting dark matter and radiation that induces bulk viscosity to resolve cosmic tensions, finding that the data disfavors such interactions prior to recombination and rules out the model as a solution to the Hubble tension.
This paper extends the study of regularization scheme dependence in supersymmetric sigma models to the five-loop order, identifying a specific renormalization scheme where the fifth-loop contribution vanishes and the fourth-loop term becomes a coordinate-independent invariant for models such as complete -duals of -deformed and - or -deformed and models.
This paper analyzes the consistency of deforming the Heisenberg algebra within constrained Hamiltonian systems to induce Generalized Uncertainty Principle theories on the reduced Poisson algebra, specifically examining scenarios involving rotational invariance and single Hamiltonian constraints relevant to General Relativity and cosmology.
This paper provides a complete classification of finite-rank conformal Hamiltonians in one-dimensional quantum mechanics by establishing their conformal symmetry conditions, demonstrating that their correlation functions are homogeneous polynomials determined by the one-dimensional conformal Ward identities.