3592 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 demonstrates that by carefully tuning a background where the dilaton varies, a black hole can be adiabatically converted into a normal quantum state without an event horizon, successfully avoiding obstructions caused by either rapid dilaton variation or Hawking evaporation.
This paper argues that while strict commutativity of localization observables is not required by fundamental no-signaling principles for idealized particle systems—which instead necessitate localization across entire Cauchy surfaces—commutativity can be recovered for less idealized, conditional localization procedures within bounded laboratories, thereby reconciling particle-based localization with the Araki-Haag-Kastler framework of relativistic quantum field theory.
This paper investigates whether the Planck PR4 CMB data's mild preference for dynamical dark energy in the CDM model is partially driven by residual excess smoothing in the anisotropy spectra, finding that while PR4 data reduce the CMB lensing anomaly compared to PR3, the observed evidence for evolving dark energy may still be influenced by these residual smoothing effects.
This paper investigates the gravitational production of massless vector particles during inflation, demonstrating that highly energetic, nearly collinear pairs are preferentially generated on sub-Hubble scales due to polarization effects, while also quantifying the resulting super-Hubble entanglement and establishing a lower bound on the reheating temperature.
This paper utilizes the large- limit to argue that the QCD phase diagram features at least three distinct phases at both zero and high baryon densities, where low-temperature thermodynamics is described by a parameter-free 3D string model and a high-density "Quarkyonic" phase is distinguished by its unique chiral properties.
This paper derives the renormalized one-loop equation of motion for an inflaton coupled to massless spectator fields, demonstrating that radiative corrections induce a quadratic secular growth in the inflaton field that invalidates standard phenomenological friction models, while simultaneously establishing a generalized optical theorem to quantify the exponential production of spectators during slow-roll inflation.
This paper investigates photon propagation through magnetar-hosted axion clouds using Euler-Heisenberg effective theory, finding that while axion-photon mixing induces geometry-dependent time delays and birefringence, the resulting microsecond-scale delays are insufficient to explain observed GRB-neutrino offsets, though the associated polarization constraints yield a stringent upper limit on the axion-photon coupling constant ().
This paper investigates the disorder-free Sachdev-Ye-Kitaev (SYK) model and finds that, unlike the Fréchet distributions observed in the Lieb-Liniger model, the off-diagonal matrix elements of operators composed of four or more Majorana fermions are well-described by a generalized inverse Gaussian distribution.
This paper constructs a rigorous class of positive-energy relativistic spatial localization observables within local quantum field theory using smeared stress-energy-momentum tensors, demonstrating that while global positivity requires quantum energy inequalities, conditional localization measurements in finite regions yield positive operator-valued measures that commute for causally separated regions, thereby reconciling relativistic causality with the Newton-Wigner position operator.
This paper proposes using forward-backward multiplicity asymmetry (FBMA) in uranium-uranium collisions as a robust control parameter to effectively disentangle the Chiral Magnetic Effect signal from flow-induced backgrounds by leveraging the correlation between FBMA and initial-state geometry while largely decoupling it from magnetic field correlations.