New research reveals a surprising relationship between magnetic field strength and energy extraction around rotating black holes, potentially explaining the origin of high-energy particles in extreme astrophysical environments.
![The frequency-dependent response of graphene’s dielectric function demonstrates a clear threshold at [latex]\omega = v_F q[/latex], beyond which the material’s imaginary component-and thus its capacity to absorb energy-shifts dramatically, suggesting an inherent limit to its optical properties at a given momentum transfer of [latex]q = 100~\mbox{cm}^{-1}[/latex] and temperature of 300K.](https://arxiv.org/html/2601.10478v1/x4.png)
A new theoretical study delves into the unusual dielectric properties of graphene, revealing unexpected behavior that could resolve inconsistencies in fundamental calculations.
![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.
![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.
Researchers have developed a visual analytics system to help make sense of the complex movements of atoms during molecular simulations.
New research reveals a fundamental framework for understanding how magnetic fields are born in plasmas, bridging disparate theories and predicting behavior in extreme environments.
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.
New research explores a path towards a consistent quantum theory of gravity by examining supergravity in 2+1 dimensions and employing innovative quantization techniques.
![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.
New research reveals unexpectedly swift plasmon dynamics in graphene, challenging established models of collective electron behavior.