Kondo Effect Redraws the Electronic Landscape of a Van der Waals Material
![The progression from localized [latex]4f[/latex] orbitals in TmTe3, through extended [latex]4f[/latex] behavior in CeTe3, to fully extended [latex]5f[/latex] orbitals in β-UTe3 demonstrates a systematic evolution towards the Kondo regime, confirmed by structural analysis revealing van der Waals gaps and tight-binding calculations showing the suppression of nesting at the Fermi level-a characteristic substantiated by scanning tunneling microscopy identifying tellurium and uranium sub-lattices and associated periodicities, even in the presence of vacancies.](https://arxiv.org/html/2602.22451v1/2602.22451v1/x1.png)
New research reveals how the Kondo effect fundamentally alters the electronic structure of β-UTe3, a promising heavy-fermion compound.
Science
String Theory’s Hidden Depths: Unveiling Non-Perturbative Effects
![The study confirms the predicted asymptotic behavior of the Stokes constants derived from FZZT contributions, as demonstrated by perfect agreement between the sequence defined in [latex] (5.27) [/latex] and its initial three Richardson transforms.](https://arxiv.org/html/2602.22335v1/2602.22335v1/x29.png)
New research leverages resurgent computations and matrix models to explore the subtle, non-perturbative behavior of string theory in three dimensions.
Beyond Relativity: How Planck-Scale Effects Warp the Quantum Oscillator
![The energy spectrum of the Klein-Gordon oscillator bifurcates into positive and negative branches-[latex]E_{N}^{(+)}[/latex] and [latex]E_{N}^{(-)}[/latex]-and its deformation via different DSR implementations-including standard AC/MS and generalized forms in first-order expansions-demonstrates how foundational energy relationships, such as [latex]E_{N}^{(0)}=\pm\sqrt{m^{2}c^{4}+2mc^{2}\hbar\omega\,N}[/latex], are not absolute but rather malleable properties contingent on the underlying systemic structure, where [latex]N\in\mathbb{N}_{0}[/latex] represents a non-negative integer defining the oscillator’s state.](https://arxiv.org/html/2602.22444v1/2602.22444v1/Fig_energy_levels.png)
New research explores how the fundamental limits of spacetime, as predicted by Doubly Special Relativity, alter the energy levels of a quantum harmonic oscillator in three dimensions.
Hidden Transitions in Neutron Stars: A Quark Impersonation?
New research suggests that a phase transition within neutron stars, driven by the formation of Delta isobars, could mimic the behavior expected from the more exotic quark matter.
Unveiling the Strong Force: New Insights from Kaon-Deuteron Collisions
![The study’s determination of [latex]K^{-}d[/latex] scattering lengths-achieved through a Lednický-Lyuboshits fit-aligns with existing theoretical calculations derived from SIDDHARTA and KEK experimental data, as evidenced by the correspondence between the ALICE measurement’s systematic and statistical uncertainties, represented by full and empty ellipses respectively.](https://arxiv.org/html/2602.22833v1/2602.22833v1/x2.png)
A femtoscopic analysis has yielded the first measurement of scattering parameters for kaon-deuteron interactions, providing critical data for understanding the strong nuclear force.
Dark Matter, Strings, and the Shadow of a Dymnikova Black Hole
![A four-dimensional Markov Chain Monte Carlo analysis constrained the mass and orbital radius of quasi-periodic oscillations for stellar-mass black holes - XTE J1550-564, GRO J1655-40, GRS 1915+105, and M82 X-1 - revealing the inherent uncertainty in these parameters as defined by [latex]1\sigma[/latex] and [latex]2\sigma[/latex] confidence intervals, and highlighting the probabilistic nature of astrophysical modeling.](https://arxiv.org/html/2602.22264v1/2602.22264v1/M82_X-1_in.png)
New research explores how surrounding dark matter and string clouds warp the spacetime around a Dymnikova black hole, altering its fundamental properties.
Watching Anyons: How Observation Alters Quantum Behavior
A new theoretical study predicts that continuously monitoring anyons within a fractional quantum Hall interferometer will dramatically extend their lifespan via the quantum Zeno effect.
Van der Waals Structures Harness Quantum Interference for Novel Electronics
Researchers have demonstrated a solid-state quantum interferometer within van der Waals heterostructures, leveraging resonant Zener tunneling to control and characterize interlayer charge transfer.
Hunting for a Quantum Whirlwind in Heavy-Ion Collisions
![In heavy-ion collisions of lead nuclei at [latex]\sqrt{s_{NN}} = 5.02 \text{TeV}[/latex], the centrality dependence of the correlated two-particle flow coefficient, [latex]f_{CME}[/latex],-extracted via correlations relative to the spectator and participant planes as defined by Eq. 7-reveals a consistent trend across varying degrees of collision centrality, as indicated by the statistical and systematic uncertainties represented by vertical bars and boxes, respectively, and further validated by a constant fit within a 95% confidence level band.](https://arxiv.org/html/2602.22900v1/2602.22900v1/x6.png)
New results from the Large Hadron Collider constrain the search for the chiral magnetic effect-a fleeting quantum phenomenon predicted to arise in the ultra-hot matter created by colliding lead ions.
Dark Matter’s Echo: Could Gravitational Waves Reveal a Hidden Universe?
![The study demonstrates a correlation between the strength parameter α and the dimensionless decay constant [latex]\tilde{\beta}[/latex], with observed minor dependencies on the [latex]M\_B[/latex] mass and a relationship to both the inverse of the initial time [latex]1/\sqrt{t\_0}[/latex] and the Hubble parameter [latex]H[/latex], further influenced by temperature [latex]T[/latex] within the Standard Model’s effective degrees of freedom [latex]g\_{\rm eff,SM}(T)[/latex].](https://arxiv.org/html/2602.23002v1/2602.23002v1/x15.png)
New lattice QCD calculations explore the potential for detecting a specific dark matter model – Hyper Stealth Dark Matter – through the gravitational waves produced during its early formation.