Prépublication
· 2026 arXiv
EN
Inferring climate fields at higher spatio-temporal resolutions from coarse representations is essential for accessing socioeconomic and environmental impacts. The downscaling of modelled climate fields faces a trade-off between data storage constraints, simula...
Yu Huang, Shangshang Yang et al.
#physics.ao-ph
Prépublication
· 2026 arXiv
EN
Under anthropogenic greenhouse forcing, climate models project a decrease in year-to-year temperature variability in the mid-to-high latitudes and an increase in the tropics and subtropics. Here, we examine year-to-year temperature variability in the CESM Larg...
Rory Basinski-Ferris, Ian Eisenman
#physics.ao-ph
Prépublication
· 2026 arXiv
EN
Over 4 billion years, Earth's atmosphere has been transformed from a composition devoid of molecular oxygen (O$_2$) to one where O$_2$ is now 21% of our modern atmosphere by volume. With high quantities of O$_2$, an ozone (O$_3$) layer can form and partially s...
Akhil Kumar, Gregory J. Cooke
#astro-ph.EP
Prépublication
· 2026 arXiv
EN
A possible mechanism of tornado generation is associated with the Schwarzschild criterion for convective instability. The supercooled cloud-air mixture near the axis starts to descend and, due to the super adiabatic temperature gradient, the overheated near-su...
S. N. Artekha
#physics.flu-dyn
Prépublication
· 2026 arXiv
EN
How galaxies stop forming stars is a complex and central problem in astrophysics. Numerous physical mechanisms have been proposed, yet a simple, unified framework connecting these mechanisms remains lacking. Here, we derive a step-function quenching response f...
Zhicheng He, Enci Wang et al.
#astro-ph.GA
Prépublication
· 2026 arXiv
EN
In Inflation without an Inflaton (IWI), a de Sitter (dS) background drives inflation, and the graviton bilinear generates scalar perturbations at second order, with no inflaton or additional fundamental scalar field. We investigate how this scenario can accoun...
Raul Jimenez, Daniele Bertacca et al.
#astro-ph.CO
Prépublication
· 2026 arXiv
EN
Higher-order curvature corrections to general relativity arise naturally in many fundamental theories and provide phenomenologically interesting low-energy effective field theories. However, higher-derivative terms can introduce ghost modes, which call the val...
Antonio De Felice, Guillem Domènech et al.
#gr-qc
Prépublication
· 2026 arXiv
EN
Multilingual dense retrievers place all languages in one shared space so that a question finds relevant documents, regardless of which language they are written in. We show that the same question, asked in different languages, retrieves substantially different...
Faeze Ghorbanpour, Shaghayegh Kolli et al.
#cs.CL
Prépublication
· 2026 arXiv
EN
Autoregressive language models produce, at every prediction step, a vocabulary-sized logit vector whose structure determines the conditional next-token distribution. We empirically identify that the ordered vocabulary-head logits follow a remarkably consistent...
Swathi Shree Narashiman, Aravind Ramana Venkatramanan et al.
#cs.CL
Prépublication
· 2026 arXiv
EN
Egocentric video understanding spans diverse capabilities, modalities, and evaluation formats, yet these are often studied in isolation despite their tight coupling in real-world interaction. We propose the Ego-Action-World interaction loop as a unifying princ...
Songruo Chen, Yuqian Fu et al.
#cs.CV
Prépublication
· 2026 arXiv
EN
Autoformalization (AF) requires more than compilation: formal statements must preserve the meaning of their informal sources, a property known as faithfulness. An emerging frontier is the automated evaluation of this property, yet most existing methods operate...
Yuming Feng, Tadd Mao et al.
#cs.CL
Prépublication
· 2026 arXiv
EN
Tool-call judges evaluate argument values proposed by LLM agents. We find that they accept a correct value less often when their input holds no reference for it, that is, no text that says what the value should be. This happens when the value is a default valu...
Linhai Ma, Yan Wang et al.
#cs.AI