⚛️ Category

hep-th

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.

⚛️ quantum physics

Emergent de Sitter Space and Non-Unitary Tensor Networks from Non-Hermitian Quantum Criticality

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.

Kuang-Hung Chou, Po-Yao Chang2026-06-17
⚛️ high-energy theory

Generalised Symmetries and Manifest Duality II: Curved Spacetime

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 AdS5×S5\mathrm{AdS}_5\times S^5 without ad hoc additions.

Subhroneel Chakrabarti, Arkajyoti Manna, Madhusudhan Raman2026-06-17
⚛️ high-energy theory

Large primordial non-Gaussianity from transient turns in Higgs-R2R^2 inflation

This paper demonstrates that transient turning trajectories in multifield Higgs-R2R^2 inflation can efficiently generate sizeable local primordial non-Gaussianity (fNLloc≃−17.7f_{\rm NL}^{\rm loc}\simeq -17.7), providing a sensitive probe to constrain the Higgs nonminimal coupling and the model's viable parameter space against current CMB observations.

Flavio Pineda, Luis O. Pimentel2026-06-17
⚛️ phenomenology

Pushing the Primordial Frontier: Exact Linear Solutions in Multifield Inflation

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.

Javier Huenupi, Claudio Muñoz, Gonzalo A. Palma, Spyros Sypsas2026-06-17
⚛️ high-energy theory

The Massive Flat Space Limit of Cosmological Correlators

This paper introduces a novel massive flat-space limit for cosmological correlators that preserves finite internal masses through a double-scaling procedure, deriving a general reduction formula to express these correlators in terms of flat-space amplitudes and applying it to reveal new non-Gaussian bispectrum shapes from heavy particle exchanges that cannot be captured by standard local effective field theory operators.

Sebastian Cespedes, Sadra Jazayeri2026-06-16
⚛️ general relativity

Short-range approximation to Casimir wormholes inspired by scalar and electric fields

This paper investigates static traversable wormholes sustained by a combination of minimally coupled scalar and electric fields with Casimir energy as exotic matter, deriving analytical near-throat solutions for both variable and fixed plate separations that yield well-behaved manifolds with throat sizes scaling proportionally to the supported electric charge.

Remo Garattini, Athanasios G. Tzikas2026-06-16
⚛️ general relativity

Hyperinvariant Spin Network States -- An AdS/CFT Model from First Principles

This paper investigates hyperinvariant tensor networks with local SU(2) symmetry as discrete AdS/CFT models, demonstrating that they realize key holographic principles within Loop Quantum Gravity while establishing no-go theorems that restrict the existence of absolutely maximally entangled states and general holographic codes under such symmetry.

Fynn Otto, Refik Mansuroglu, Norbert Schuch, Otfried Gühne, Hanno Sahlmann2026-06-16