3126 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 Tsallis holographic dark energy model under power law ansatz across viscous, non-viscous, and Chaplygin gas scenarios, analyzing their stability and phantom divide crossing to conclude that the Chaplygin gas scenario offers superior insights into stability issues.
This paper demonstrates that certain holographic dark energy models can lead to a "long freeze" scenario where the universe asymptotically approaches a static state with vanishing energy density, a behavior that can persist after an extended period of exponential expansion but is generally disrupted by the presence of nonrelativistic matter.
This paper presents a fully covariant toy model where a closed FLRW spacetime emerges as a 4-brane within a flat five-dimensional scalar field space, driven by a string-like potential without requiring explicit curvature terms in the action.
This paper comprehensively analyzes late-time cosmic scenarios, particularly rips, within a holographic dark energy framework using both primitive and generalized Nojiri-Odintsov cutoffs, while evaluating the validity of thermodynamic laws and energy conditions to demonstrate that consistent alternatives to the Big Rip are unattainable with simpler cutoffs but possible with the generalized approach.
This study demonstrates that the non-relativistic transverse velocity of an Unruh-DeWitt detector can slightly mitigate information degradation caused by the Unruh effect in accelerated quantum systems, while ultra-relativistic velocities effectively suppress the effect entirely.
This paper investigates the phase structure of the Russian Doll Model with a -term, revealing a rich landscape of localized, ergodic, and multifractal phases in both deterministic and disordered regimes, while establishing a deep connection between the model's Bethe Ansatz equations and the BPS sector of SQCD vortex strings to suggest applications in dense QCD.
This paper investigates the dynamics of vortex dipoles on surfaces of variable negative curvature, specifically a catenoid, demonstrating that their Hamiltonian motion follows geodesics, conserves a momentum map associated with azimuthal symmetry, and exhibits self-propulsion orthogonal to the dipole axis with speed modulated by curvature.
This paper demonstrates that the Smeared Null Energy Condition (SNEC) imposes significant constraints on the viability of Genesis cosmology models within generalized Galileon theories, establishing SNEC as a powerful tool for limiting nonsingular cosmological scenarios that rely on null energy condition violations.
This paper demonstrates that the emergence of a robust cosmological arrow of time, distinguishing expanding from contracting histories, arises not merely from inflationary squeezing or boundary conditions but from environment-induced decoherence of superhorizon curvature modes, which irreversibly suppresses interference between macroscopically distinct branches within approximately 0.5 e-folds.
This paper establishes an axiomatic framework for the continuum limit of spin foam amplitudes, demonstrating that while strong convergence inevitably leads to a topological theory, a distributional approach inspired by Refined Algebraic Quantisation successfully yields a well-defined physical Hilbert space and interprets the gravitational path integral as a rigging map.