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 investigates the Compton scattering of an entangled photon pair using quantum electrodynamics to derive Kraus operators and demonstrate that while the non-interacting photon remains unchanged, observable quantum effects in sensing rely on the correlations of the entire pair, with applications to polarization analysis in astrophysical electron-positron annihilation.
This paper establishes recursive integration-by-parts identities and a closed ODE system to symbolically reduce and numerically evaluate the nonlinear response kernels of Schwarzschild black holes at arbitrary perturbative orders, enabling the computation of quasinormal-mode coupling coefficients up to quartic order.
This paper investigates the evolution of quasi-(1+1) dimensional Klein-Gordon wavepackets for relativistic charged particles, determining that a Gaussian approximation for charge density remains valid only when the initial wavepacket width exceeds the Compton wavelength divided by the Lorentz factor, a constraint reflecting relativistic length contraction.
This paper establishes the local uniqueness of the Black String metric for small circle sizes by proving its infinitesimal rigidity and applying a fixed point theorem to show that no other Ricci-flat metrics exist in its neighborhood, while also demonstrating that a similar fixed point approach yields a global uniqueness result for a related scalar field toy problem.
This paper presents the first comprehensive prediction of the complete gravitational-wave spectrum in the new inflation scenario, incorporating all known classical and quantum production mechanisms to reveal how high-frequency waves encode information about the inflaton and post-inflationary dynamics.
This paper proposes that the imaginary part of the retarded Green's function in the dual CFT serves as a signature of the timelike singularity in a charged black brane, arising from exponentially small contributions at large real frequency that correspond to null geodesics reflecting off the singularity in the analytically continued bulk interior.
This paper argues that the non-unitarity observed in both black hole evaporation and cosmological evolution arises from the necessity of including backreaction effects, which lead to quadratic gravity theories containing ghosts that violate unitarity and result in a constant black hole entropy during evaporation.
This paper computes the full scalar-scalar-graviton vertex within the Asymptotic Safety framework using a mostly analytic approximation, demonstrating that it correctly reproduces expected logarithmic branch-cut structures and Weinberg's soft divergences while revealing that non-minimal operators are quantitatively as significant as the minimal kinetic vertex.
This paper proposes that the inflationary cosmological constant of the early universe can be derived from the principle of maximum entropy, suggesting that the universe emerges from a minimum entropy state and evolves toward a 4-dimensional de Sitter space with a specific maximum entropy value.
This paper investigates the state as a molecular candidate using the one-boson-exchange model, concluding that while multiple spin-parity assignments are compatible with its mass, the configuration best matches experimental decay widths, suggesting it is likely a higher-partial-wave molecular state.