Beyond the Straight Line: Rethinking Gravitational Lensing
![The study establishes a coordinate system centered on the lens, utilizing spherical coordinates [latex] (\theta, \phi, r) [/latex] to define the lens metric [latex] [Eqs. (87) and (109)] [/latex], and further refines this approach by transitioning to a flat spacetime coordinate system centered on the source for initial condition placement, effectively modeling geodesic deviation based on the closest radial distance to the impact parameter [latex] b [/latex].](https://arxiv.org/html/2601.10239v1/refBHS1.jpeg)
A new perturbative approach challenges traditional geometric optics models of gravitational lensing, revealing subtle effects previously overlooked in calculations.
Science
Unconventional Magnetism Powers Superconducting Diodes
![The efficiency of the stochastic differential equation in realizing a spin-singlet dd-wave phase-modulated along the direction of minimal wave vector [latex]\mathbf{Q}[/latex]-exhibits a dependence on the upper polar moment spin splitting λ, particularly under a magnetic field normalized to the critical temperature, and this relationship varies predictably with temperature itself.](https://arxiv.org/html/2601.09783v1/x8.png)
New research demonstrates a highly efficient superconducting diode effect arising from the interplay of unconventional magnetism and superconductivity, opening doors to next-generation energy-saving electronics.
Seeing Atomic Motion: A New Lens for Molecular Dynamics
Researchers have developed a visual analytics system to help make sense of the complex movements of atoms during molecular simulations.
Plasma’s Magnetic Fields: A Unified Origin Story
New research reveals a fundamental framework for understanding how magnetic fields are born in plasmas, bridging disparate theories and predicting behavior in extreme environments.
Unmasking Neutrino Secrets with ESSnuSBplus
A new generation of neutrino experiments, spearheaded by the ESSnuSBplus facility, promises to redefine our understanding of these elusive particles and the fundamental laws of physics.
Beyond Einstein: Quantizing Supergravity in Lower Dimensions
New research explores a path towards a consistent quantum theory of gravity by examining supergravity in 2+1 dimensions and employing innovative quantization techniques.
From Multiverse to Cosmos: A New View of Universal Origins
![Distinct one-dimensional universes, differentiated by inherent characteristics, are unified through the exchange of traversable wormholes, resulting in a propagating two-dimensional construct evolving with time-a process facilitated by designated reference points within each original universe, as detailed in prior work [8, 3].](https://arxiv.org/html/2601.10499v1/x1.png)
A novel theoretical framework proposes our universe arose from the symmetry breaking within a multiverse, potentially solving long-standing cosmological mysteries.
Graphene’s Rapid Response: Rethinking Plasmons in a 2D World
New research reveals unexpectedly swift plasmon dynamics in graphene, challenging established models of collective electron behavior.
Unlocking Quark-Gluon Plasma Secrets with String Theory
![The study of quark-antiquark interactions within a Rindler-AdS background reveals that the potential energy [latex]VV[/latex] between quarks scales with both the separation distance [latex]LL[/latex] and a constant [latex]\mathcal{C}[/latex] characterizing the system’s acceleration, exhibiting distinct behaviors across varying acceleration levels-specifically, [latex]a = 0.4/\ell[/latex], [latex]0.6/\ell[/latex], [latex]1/\ell[/latex], and [latex]2/\ell[/latex]-and demonstrating how fundamental forces are modulated by spacetime curvature.](https://arxiv.org/html/2601.10668v1/x3.png)
New research explores the fundamental forces binding quarks together under extreme conditions, shedding light on the behavior of matter in heavy ion collisions.
Topological Waves at Material Boundaries
New research reveals how magnetic Weyl semimetals can host unique, localized waves with potential for advanced photonic technologies.