Researchers have demonstrated a novel technique to suppress noise in interferometric measurements, pushing the boundaries of our ability to detect the subtle nonlinear effects of the quantum vacuum.
![The study defines helicity angles for the decay process [latex]e^{+}e^{-}\to Y\bar{Y}[/latex], where Y subsequently decays into a Lambda baryon and a pion, establishing a consistent framework applicable to both the initial particle pair and the resulting anti-baryon-pion combination.](https://arxiv.org/html/2602.10398v1/diagram_new.png)
New research demonstrates that entanglement between hyperons and anti-hyperons can be dynamically altered through sequential decay processes, potentially leading to enhanced quantum correlations.
This review explores how breaking the symmetry of interactions in many-body systems leads to fundamentally new physics and exotic states of matter.
![Four-wave mixing (FWM) experiments demonstrate momentum state manipulation in atomic gases, utilizing sequential Bragg pulses at [latex]790.00\ \mathrm{nm}[/latex] to generate distinct momentum states [latex]\mathbf{p}\_{1}, \mathbf{p}\_{2}, \text{ and } \mathbf{p}\_{3}[/latex] from a single spin component, and, with a [latex]769.35\ \mathrm{nm}[/latex] lattice configuration and a bias magnetic field, to reveal symmetric momentum transitions [latex]\lvert\pm 2\hbar k\rangle[/latex] within a two-spin component system, evidenced by the formation of scattered wave packets visualized through absorption imaging.](https://arxiv.org/html/2602.10873v1/x1.png)
Researchers have demonstrated precise control over matter-wave four-wave mixing in a potassium Bose-Einstein condensate, paving the way for advanced quantum technologies.
![The study demonstrates how a surrounding dark matter halo, modeled with a Hernquist density profile and anisotropic distribution, subtly alters the expected inertial frame dragging effect - specifically, the angular velocity [latex]\omega(r)[/latex] - deviating from the vacuum prediction and manifesting as a measurable shift in the spacetime geometry around a slowly rotating massive object.](https://arxiv.org/html/2602.10579v1/x2.png)
New research explores how surrounding dark matter halos warp the spacetime around slowly rotating black holes, altering orbital dynamics and influencing gravitational wave signatures.
New research provides the most detailed look yet at how top quarks interact with the fundamental forces, revealing potential pathways to physics beyond the Standard Model.
New research explores how modified gravity theories and quantum mechanics might resolve the singularity at the universe’s origin and paint a picture of a non-singular beginning.
![The study demonstrates how dust density and mass distributions within an outer boundary-configured to achieve a minimum radius of [latex]L_0 = 0.2[/latex] for a mass of [latex]M = 1[/latex]-reveal the inherent limitations of any model attempting to define a boundary, much like peering into the abyss where even the most carefully constructed theories risk vanishing beyond reach.](https://arxiv.org/html/2602.10804v1/x2.png)
New research explores how modified models of gravity might allow collapsing dust clouds to ‘bounce’ instead of forming a singularity.
A new frontier in materials science combines magnetism and light to unlock novel optoelectronic and quantum phenomena.
![The study demonstrates that deviations in the recombination coefficient [latex]\alpha_{21}[/latex] between first-principles calculations and scaled Standard Model results remain below 3% for [latex]\alpha_D \sim eq 0.3[/latex] when the matter-radiation ratio is [latex]\mathcal{R}_m = 0.1[/latex], even when exploring scenarios representing dark positronium-created by setting dark electron and proton masses equal to the Standard Model electron mass-across temperatures of [latex]T_\gamma = E_n[/latex], [latex]T_\gamma = 0.1E_n[/latex], and [latex]T_\gamma = 0.01E_n[/latex], where [latex]E_n = B_{H_D}/n^2[/latex] with [latex]n=2[/latex].](https://arxiv.org/html/2602.10197v1/x1.png)
New calculations of atomic processes within dark matter models are enabling astronomers to more precisely constrain the properties of this elusive substance.