5150 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 utilizes the gauge-invariance principle within the spinor-helicity formalism to derive the necessary contact terms for the tree-level electromagnetic Compton amplitude, ensuring the result is gauge invariant, unitary, and free of spurious poles, a finding subsequently verified through amplitude factorization.
This paper computes fully relativistic quadratic Love numbers for neutron stars using worldline effective field theory and second-order perturbations, revealing that these nonlinear tidal corrections—though entering at a high post-Newtonian order—can be as significant as lower-order linear and point-particle effects in binary gravitational-wave signals, thereby establishing a framework for high-precision modeling of nonlinear tidal dynamics.
This paper argues that the hierarchy problem is resolved by recognizing that renormalized scalar mass corrections from heavy fields decouple as rather than exhibiting quadratic sensitivity to the cutoff, thereby aligning with the Appelquist-Carazzone theorem while clarifying that the origin of the small tree-level mass remains an open question.
This paper derives the Hawking radiation spectrum by exponentiating a series of Feynman diagrams representing scalar field scattering in a collapse background using semiclassical amplitude methods, while also calculating a subdominant one-loop correction that acts as a finite-size effect sensitive to the black hole's radius.
This paper presents a simplified, Hamiltonian-based quantum algorithm that efficiently prepares character states of the symmetric group using only nearest-neighbor gates with a gate complexity of (significantly improving upon the prior QFT approach), while also generalizing the method to the quantum character transform and discussing its application to entanglement entropy in conformal field theories.
This paper employs Bayesian MCMC analysis and a custom kinetic-theory CMB pipeline to demonstrate that finite-temperature quantum-gravitational corrections to the cosmological constant, represented by and , remain undetected in Planck 2018 data because their subtle signatures are effectively absorbed by degeneracies with the Hubble constant and overall spectrum amplitude.
This paper demonstrates that while OTOC decay alone cannot distinguish chaotic from integrable systems, the late-time saturation value of operator purity provides a robust distinction through its distinct scaling with system size, a result derived analytically using the Mazur bound and supported by numerical simulations of one-dimensional spin chains.
This paper presents an explicit formula for the -gon graph contribution to the cosmological wavefunction in de Sitter space for conformally coupled theory, expressing the result in terms of newly introduced -type quadrangular polylogarithms derived from centrally symmetric quadrangulations of a -gon and proving the formula by linking the wavefunction's recursive differential equation to a coproduct structure within the cluster algebra.
This paper utilizes the Iyer-Wald formalism with auxiliary gauge fields to derive the first law of extended black hole thermodynamics, demonstrating that the resulting thermodynamic volumes are independent of these auxiliary fields, match previous brute-force calculations, and can be equivalently expressed in terms of the fields evaluated on the black hole horizon.
This paper investigates the effective action of quantum gravity coupled to matter fields in the Landau background gauge, explicitly calculating one-loop counterterms and demonstrating that the matter self-energy is finite at this order, suggesting potential finiteness at higher loops.