Warping Spacetime: A New Path to Lorentz-Violating Gravity
![For Kerr-(A)dS spacetime, the ranges of energy and rotation parameter define regions where the associated bumblebee field remains globally real or transitions to imaginary values, demarcated by critical curves and influenced by the cosmological constant [latex]\lambda=\Lambda m^{2}[/latex], with the dashed line indicating the threshold where the black hole becomes extremal.](https://arxiv.org/html/2601.16037v1/pic4.png)
Researchers have developed a novel technique to generate a family of spacetime solutions within bumblebee gravity, offering insights into how Lorentz symmetry might be broken.
Science
Valley Currents: Harnessing Exciton-Polaritons for Ultrafast Optics
![A pronounced anomalous Hall effect is observed in valley-polarized polaritons, where strain-induced symmetry breaking generates an effective pseudomagnetic field driving a measurable drift velocity of [latex]1.69 \times 10^{5}~\mathrm{m/s}[/latex], as evidenced by the temporal evolution of valley polarization and confirmed by a two-Gaussian fit with a [latex]95\%[/latex] prediction interval.](https://arxiv.org/html/2601.15631v1/x2.png)
New research reveals an unexpected optical response in exciton-polariton systems, opening doors to exceptionally high-speed and tunable valleytronic devices.
Unlocking Correlated Quantum States in 2D Materials
A new review details how advanced spectroscopic techniques are revealing the behavior of interacting excitons within the unique structure of Ruddlesden-Popper metal halides.
Untangling Disorder: The Geometry of Spin Glasses
A new review explores the complex energy landscapes of spin glasses and the algorithms used to navigate them, revealing deep connections to the broader field of high-dimensional statistics.
Graphene’s Quantum Leap: Hall Effects at Millitesla Fields
Researchers have demonstrated a graphene-based heterostructure capable of exhibiting both integer and fractional quantum Hall effects at unprecedentedly low magnetic fields.
Beyond Born-Huang: Reframing Electron Transfer with Phase Space
A new approach to modeling electron transfer processes leverages phase space electronic structure to provide a more accurate depiction of molecular interactions.
Beyond Einstein: Mapping the Boundaries of Weyl Gravity
A new analysis clarifies the Hamiltonian structure and conserved charges of Weyl-transverse gravity, revealing key differences from General Relativity and potential insights into black hole thermodynamics.
Beyond the Standard Model: Hunting Higgs Decays for New Physics
New calculations reveal how the dimuon decay rates of multiple Higgs bosons can vary within an extended theoretical framework, offering potential avenues for discovery at the Large Hadron Collider.
Unlocking Prime Secrets: A New Framework for Number Distribution
![The study reveals a complex relationship between recursive parameters, demonstrating that [latex]r_n(0.5 + 14.135i)[/latex] at iteration 110, alongside its minimum [latex]r_{p_{min}}[/latex] and maximum [latex]r_{p_{max}}[/latex] values - represented in blue and magenta respectively - fluctuate around a mean [latex]\langle r_p \rangle[/latex] (black), with prime number locations highlighted to suggest an underlying mathematical structure governing the recursion.](https://arxiv.org/html/2601.16193v1/r_n.png)
A novel density-based approach offers fresh perspectives on the enigmatic patterns governing prime numbers and the gaps between them.
Taming Infinity: Heat Equations on Quantum Spaces
New research extends a key theorem governing the behavior of heat equations to the strange and complex world of noncommutative geometry.