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.

Self-gravitating quantum stars with a globally relevant Bohm potential

This paper derives a two-species Schrödinger-Poisson-Yukawa system for dark-sector fermions within an orbital-free density-functional framework, demonstrating that the Bohm potential induces a species-dependent surface-energy correction that governs the mass-radius relations of self-gravitating quantum stars and offers a predictive, first-principles method to constrain dark-fermion masses through observable astrophysical signatures.

Ilidio Lopes2026-06-02⚛️ hep-th

Trajectories of Critical Unstable Qubits in and on the Bloch Sphere

This paper extends the study of Critical Unstable Qubits (CUQs) by employing density matrix formalism to characterize their unique indefinite anharmonic oscillations and coherence-decoherence dynamics, providing the first explicit geometric constructions of their trajectories within and on the Bloch sphere to identify stationary points and discuss implications for particle cosmology and quantum simulations.

Snehit Panghal, Apostolos Pilaftsis2026-06-02⚛️ quant-ph

Quantum dominance of coherent bremsstrahlung in \isotope[124]Sn+\isotope[124]Sn\isotope[124]{Sn} + \isotope[124]{Sn} scattering at 25 MeV/u

This paper presents quantum-mechanical calculations demonstrating that coherent bremsstrahlung emission overwhelmingly dominates over incoherent emission in 124^{124}Sn+124^{124}Sn scattering at 25 MeV/u, a behavior that contrasts sharply with proton-nucleus collisions and reveals a new quantum regime for studying coherent effects in heavy-ion reactions.

Sergei~P. ~Maydanyuk (Southern Center for Nuclear-Science Theory, Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv 03680, Ukraine), Ju-Jun Xie (Southern Center for Nuclear (…)2026-06-02⚛️ nucl-th

Ellis-Bronnikov Wormhole Shadows with Spherically Symmetric Accretion Flow

This study utilizes general relativistic radiative transfer simulations to demonstrate that while both Ellis-Bronnikov wormholes and Schwarzschild black holes produce similar shadow and photon ring structures consistent with Event Horizon Telescope observations of M87*, the wormhole's lack of an event horizon results in a distinctly brighter shadow and ring due to emission from matter beyond the throat.

Mikiya M. Takahashi, Keisuke Nakashi2026-06-02⚛️ gr-qc

Semileptonic Decays of Λpνˉ\Lambda \to p \ell^{-} \bar{\nu}_{\ell} in the Light-Front Dynamics

This paper investigates the exclusive semileptonic decays of Λpνˉ\Lambda \to p \ell^{-} \bar{\nu}_{\ell} using a light-front quark model that incorporates nonvalence contributions, yielding branching ratios consistent with recent BESIII measurements and demonstrating the significant role of these nonvalence effects in such baryon decays.

Chong-Chung Lih, Chao-Qiang Geng2026-06-02⚛️ hep-ph

Quasi-bound States of Scalar field inside the Dyonic Kerr-Sen Black Hole

This paper derives exact analytic quasi-stationary states for a massive scalar field in a dyonic Kerr-Sen black hole background using horizon-regular coordinates, revealing a quantized spectrum where positive-energy modes grow exponentially to destabilize the chronology-violating inner region, thereby supporting Hawking's chronology protection conjecture.

David Senjaya, Tinnagrit Songkeaw, Piyabut Burikham2026-06-02⚛️ hep-th

COSMOS: A numerical relativity code specialized for PBH formation

COSMOS is a standalone, OpenMP-parallelized C++ numerical relativity code designed to simulate primordial black hole formation by solving the Einstein equations in 3+1 dimensions using specialized non-Cartesian scale-up coordinates and fixed mesh refinement to handle non-linear gravitational dynamics.

Chul-Moon Yoo, Hirotada Okawa, Albert Escrivà, Tomohiro Harada, Hayami Iizuka, Taishi Ikeda, Yasutaka Koga, Daiki Saito, Masaaki Shimada, Koichiro Uehara2026-06-02⚛️ gr-qc