![The reflection coefficients-[latex]R[/latex] and [latex]J^{\mathrm{ref,sym}}[/latex], [latex]J^{\mathrm{ref,asym}}[/latex]-exhibit a pronounced dependence on incident angle, varying systematically with on-site potentials and energies, though the radial axis is cropped to enhance clarity of these relationships.](https://arxiv.org/html/2601.05140v1/x10.png)
A new study reveals an unexpected analogy between electron reflection at the interface of a Mott insulator and the Klein paradox, opening doors for solid-state investigations of fundamental quantum phenomena.
New research explores the quantum effects generated by fields existing within the intense gravitational environment of boson stars, potentially revealing corrections to classical spacetime.
![The study demonstrates that future iterations of levitated FMTO experiments, leveraging optimized configurations, enhanced vibration isolation, and superconducting shielding, are projected to significantly improve sensitivity to axion-electron coupling-potentially matching or exceeding the constraints currently established by both laboratory-based comagnetometers and astrophysical observations of red-giant cooling and solar axions, as indicated by the projected curves and current limits shown for [latex]g_{aee}[/latex] versus [latex]m_a[/latex].](https://arxiv.org/html/2601.04576v1/prospect.png)
Researchers are employing a highly sensitive torsional oscillator to search for evidence of ultralight axions, a leading candidate for dark matter.
![The measured strength of spin correlations, quantified as [latex] f_{\mathrm{SM}} [/latex], deviates from Standard Model predictions, with statistical uncertainties indicated by inner bars, total experimental uncertainties by middle bars, and comprehensive uncertainties detailed by outer bars-a nuanced assessment of observed phenomena beyond established theoretical frameworks.](https://arxiv.org/html/2601.04649v1/x2.png)
New measurements from the ATLAS and CMS experiments at the Large Hadron Collider provide compelling evidence of quantum entanglement and spin correlation in top quark pairs.
Researchers have demonstrated a new method to mimic the electromagnetic properties of materials by dynamically controlling light, effectively creating a ‘temporal illusion’.
New research explores the delicate interplay of fundamental parameters that determine whether CP violation arises within the framework of Quantum Chromodynamics.
A new analysis suggests that the paradoxes of quantum entanglement arise not from instantaneous connection, but from a misunderstanding of how potential states influence measurable outcomes.
![The study demonstrates how symmetry-breaking parameters - specifically [latex]\xi_{1}[/latex] , [latex]\xi_{2}[/latex] , and their combined influence - define the landscape of a Columbia plot, revealing underlying relationships within the system’s behavior.](https://arxiv.org/html/2601.03710v1/x6.png)
New research explores how subtle quantum effects, including a novel determinant-squared interaction, influence the chiral phase transition in quantum chromodynamics.
New theoretical work predicts how fully-strange tetraquark states will decay, offering a path to identifying these unusual particles in ongoing experiments.
New research reveals how p-adic string theory can reconcile exponentially spaced energy levels with predictable microstate counts, challenging conventional scaling assumptions.