![The spin-1 [latex]J_1-J_2-J_3[/latex] chain exhibits a complex phase diagram characterized by transitions between disordered, [latex]\mathbb{Z}_4[/latex] ordered, Haldane, and dimerized phases, with the nature of these transitions-ranging from Gaussian and Ashkin-Teller to first-order and Ising-shifting based on the relative strength of [latex]J_1[/latex], ultimately converging towards a multi-critical point at [latex]J_1 = 0[/latex] representing two copies of WZW SU(2)₂ critical theory and delineating a leg-dimerized phase from uncoupled Haldane chains.](https://arxiv.org/html/2602.23187v1/2602.23187v1/x2.png)
Researchers have uncovered a unique quantum phase transition in coupled frustrated chains, revealing unexpected critical behavior and expanding our understanding of complex quantum systems.
A new framework offers a practical way to verify the behavior of large language models without needing access to their internal workings.
Researchers have discovered a novel connection between geometric structures and error-correcting codes, expanding our understanding of both fields.
A new architecture leverages the power of event sourcing to bring greater predictability and auditability to software developed with large language models.
New research reveals specific layers within these models that act as crucial bottlenecks for optical character recognition, offering a pathway to understand and control their visual processing abilities.
![The comparison of next-to-leading order (NLO) sum rules-detailed in [latex]Eqs. (65, 71, 84)[/latex]-to their leading order (LO) counterparts-defined by [latex]Eqs. (64, 69, 70, 77, 78, 79, 80)[/latex]-reveals the subtle shifts in understanding as calculations refine, all while remaining bounded by the fundamental constraints illustrated by the UU-spin limit.](https://arxiv.org/html/2602.22320v1/2602.22320v1/x1.png)
New research reveals a surprisingly simple and robust relationship governing the decay of charm particles.
![The ferromagnetic phase exhibits a dependence between the pseudoorbital-space polar angle θ and the variables [latex]J-\lambda[/latex], particularly when [latex]t\ll\Delta_{\rm CF}\ll U[/latex] with [latex]U=20t[/latex], demonstrating a constrained relationship within specific energy scales.](https://arxiv.org/html/2602.23011v1/2602.23011v1/theta2.jpg)
New research explores the complex interplay of interactions governing magnetic behavior in layered perovskite materials.
Researchers have discovered a surprising method for circumventing AI safety protocols by crafting adversarial prompts rooted in the nuances of Classical Chinese.
Researchers are combining effective field theory and lattice QCD to develop a rigorous framework for calculating the electromagnetic properties of the rho meson.
![Disrupting feedback and integration pathways diminishes sustained neural activity-measured as [latex] NsN^{s}AUC [/latex]-in ipsundrum variants, suggesting a critical role for these mechanisms in maintaining post-stimulus neural persistence.](https://arxiv.org/html/2602.23232v1/2602.23232v1/x4.png)
Researchers have unveiled a small, inspectable AI system designed to explore the core mechanisms underlying persistent thought, stable preferences, and goal-directed behavior.