5125 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 argues that measuring the lifetime and decay law of metastable helium offers a promising avenue for detecting deviations from standard quantum mechanics, as even small quartic deformations can produce significant, observable changes in mean lifetime and non-exponential decay patterns within the Wigner–Weisskopf approximation.
This paper employs a multiscale variational framework to model spherically symmetric standing waves as an intermediate stage in the adiabatic evolution of oscillons, demonstrating excellent agreement with numerical solutions near the continuous spectrum endpoint while identifying discrepancies at lower frequencies due to neglected radiation wings.
This paper proposes a universal parametric bound on the higher-spin gap in large CFTs, derived from a new framework of "families of CFTs" inspired by number theory, which holographically constrains Planckian scale separation and explains scaling patterns in string/M-theory.
This paper computes one-loop corrections to the non-minimal coupling of a scalar field to gravity using a non-covariant linearized gravity framework, demonstrating that the resulting effective action, running coupling, and effective potential are consistent with established covariant heat kernel results and satisfy the decoupling theorem.
This paper investigates the Higgs branch of strongly coupled 5d gauge theories with and groups, mapping how the Chern-Simons level deforms chiral ring relations and identifying the moduli space as a classical integrable system.
This paper demonstrates that the dimensional reduction of four-dimensional Yang-Mills instantons on Taub-NUT and Eguchi-Hanson backgrounds yields three-dimensional matter configurations exhibiting a "Gravitational Cheshire effect," where specific sectors of the field either fully or partially screen their own gravitational backreaction, resulting in stealth or partially stealth composite states on flat space.
This paper demonstrates that local gauge theories with identical degrees of freedom but distinct gauge structures are related by "topological deformations"—the systematic gauging of symmetries within a presymplectic BV-AKSZ framework—which couples the system to a BF-type sector to either identify global symmetry-related solutions or generate new global degrees of freedom like the cosmological constant.
This paper demonstrates that gravitational self-interactions can continuously generate and sustain quantum squeezing in light axion dark matter despite decoherence, thermal fluctuations, and dephasing, suggesting that dark matter may retain persistent quantum features relevant for detection.
This paper establishes the positivity of the group-averaging inner product for perturbative quantum gravity in global de Sitter space with under specific particle-weight convergence conditions, while also revealing that states with smaller weights can yield negative norms, thereby clarifying the viability of this approach for resolving constraints in de Sitter quantum gravity.
This paper proposes the framework of Cosmological Classical Branches (CCBs), which explains how distinct late-time matter components act as compatible physical records of primordial curvature perturbations, thereby rendering a single classical realization physically meaningful through decoherence while preserving the global quantum superposition.