4400 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 proposes that a matter-free, three-torus universe driven by Casimir energy can evolve from a Planck-scale origin to a present size consistent with cosmic microwave background anomalies, provided specific parameters regarding particle content, inflation, and reheating are met.
This paper revisits the variational principle for relativistic perfect fluids using a manifestly covariant differential forms formalism to clarify boundary conditions for timelike flows and demonstrates that extending this principle to null flows dynamically forces the enthalpy density to vanish, resulting in a stress-energy tensor composed of variable vacuum energy and null dust.
This paper resolves the long-standing inconsistency of charged massive spin-3/2 fields in Einstein-Maxwell backgrounds by demonstrating that gravitational coupling imposes a lower mass bound near the Planck scale, thereby validating fractionally charged supermassive gravitinos as viable dark matter candidates.
This paper establishes a geometric framework for non-supersymmetric effective gauge theories by constructing supersymmetric embeddings of dimension-six operators and utilizing vector bundles to systematically organize gauge operators under field redefinitions, thereby revealing an underlying complex geometry.
This paper provides a constructive derivation of the continuum height field theory for the two-dimensional classical dimer model on square and honeycomb lattices by starting from an exact Grassmann integral representation, taking the continuum limit to obtain massless Dirac fermions, and applying bosonization to map the system to a height model that fully describes its long-distance correlations and topological properties.
This paper introduces a helical generalization of the Sachdev-Ye-Kitaev model in 1+1 dimensions, demonstrating that while its full interaction space breaks exact solvability, the theory flows to a free and integrable fixed point in the infrared limit due to the marginal irrelevance of all interactions.
This paper constructs Hilbert spaces for minisuperspace quantum cosmology in the extreme slow-roll limit, demonstrating that fixing the potential energy yields a one-dimensional physical space favoring Vilenkin's tunnelling wavefunction, while allowing it to vary leads to an infinite-dimensional space where self-adjointness imposes boundary conditions that generally mix Hartle-Hawking and tunnelling wavefunctions, with a specific choice nearly recovering the Hartle-Hawking state.
This paper utilizes thermal inversion formulas to derive accurate asymptotic expressions for spectral densities and OPE coefficients of heavy operators in a 3D CFT dual to an interacting scalar field in AdS, demonstrating that these analytic results remain quantitatively reliable even at intermediate conformal weights despite bulk interactions.
This paper establishes a systematic thermodynamic framework based on potential representations to derive equations of state and response functions for ideal gases and Schwarzschild black holes in a spherical cavity, revealing that the quasi-local black hole's stability and thermodynamic behavior critically depend on the specific representation and fixed variables chosen.
This paper establishes that Casimir energies in nonlinear scalar and electromagnetic theories can be accurately computed using an effective-metric prescription derived from the Hessian of the Lagrangian or fluctuation branches, a method validated by exact agreement between direct mode summation and the effective-metric formula for nonlinear electrodynamics in a constant magnetic background.