2913 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 conformal block decomposition of Witten diagrams for holographic defects by employing the split representation of AdS propagators to derive explicit OPE coefficients and recursion relations for tree-level diagrams, as well as closed-form expressions for defect-to-bulk crossing kernels in specific dimensions.
This study utilizes the Dynamical QuasiParticle Model and Parton--Hadron--String Dynamics transport approach to demonstrate that thermal QGP dilepton radiation becomes a dominant signal over correlated charm decays in central heavy-ion collisions at energies below 25–30 GeV, highlighting the potential of RHIC-BES and FAIR experiments to directly observe QGP electromagnetic radiation and probe the QCD phase structure.
This paper classifies 4-dimensional gravitational theories with integrability properties analogous to quasi-topological gravity for a specific set of symmetric metrics, demonstrating that only theories yielding third-order equations can be analytic in the Riemann tensor and constructing unique, regular static black hole solutions with first-order field equations from infinite towers of high-energy curvature corrections.
By combining Bayesian spline reconstruction with exhaustive symbolic regression on cosmological data within the VCDM framework, the authors identify a simple, one-parameter phantom-crossing dark energy model () that fits observations as well as standard two-parameter models while offering a more predictive, dynamically deformed alternative to the cosmological constant.
This paper reviews how one-loop corrections from matter fields during de Sitter inflation differentially affect gravitational wave mode functions, showing that while conformally coupled matter yields only logarithmic enhancements, massless minimally coupled scalars induce a significant shift in the real part of the mode function that can be interpreted as a modification of the inflationary Hubble parameter.
This paper establishes a novel dS/(c)MERA correspondence by demonstrating that a non-unitary continuous multi-scale entanglement renormalization ansatz (cMERA) for a non-Hermitian critical fermion chain naturally gives rise to emergent de Sitter spacetime, where a timelike-to-null transition in geodesics dictates a discrete tensor-network architecture that successfully reproduces the logarithmic scaling of non-unitary entanglement entropy.
This paper extends a potential-based formulation of self-dual gauge theories to curved spacetime using Sen's metric-dependent map, demonstrating that the resulting action reproduces known gravitational anomalies and yields the correct holographic boundary terms and supergravity identifications on without ad hoc additions.
This paper demonstrates that transient turning trajectories in multifield Higgs- inflation can efficiently generate sizeable local primordial non-Gaussianity (), providing a sensitive probe to constrain the Higgs nonminimal coupling and the model's viable parameter space against current CMB observations.
This paper presents exact analytic solutions for the linear dynamics of a two-field inflationary system with arbitrary entropy mass and interaction strength, providing closed-form expressions for the primordial power spectrum that bridge weakly and strongly coupled regimes and enabling future analytic studies of multifield observables like non-Gaussianity.
This paper investigates renormalization group flows in two-dimensional de Sitter spacetime by constructing two candidate c-functions that interpolate between UV and IR central charges, deriving sum rules that imply the inequality , and verifying monotonicity in free massive theories despite lacking a general proof.