Where Quantum Reality Takes Shape: A New Framework for Localization
Researchers have developed a mathematical approach to defining where quantum events occur, bridging the gap between quantum mechanics and the principles of relativity.
Science
Unlocking Potential: Recovering Quantum Systems from Transition Data
![The study delineates the bounds of applicability for critical function space estimations-specifically, for [latex]L^{q}(\mathbb{R}^{n})[/latex] potentials, Strichartz pairs [latex](r,p)[/latex], and the Stein-Tomas extension [latex]L^{2}(\mathbb{S}^{n-1})\to L^{p}(\mathbb{R}^{n})[/latex]-demonstrating that the Kenig-Ruiz-Sogge estimate holds for [latex]p\in[q\_{2},\in fty)[/latex] in two dimensions and [latex]p\in[q\_{n},p\_{n}][/latex] for higher dimensions, thereby establishing a nuanced understanding of their dimensional dependence.](https://arxiv.org/html/2602.12122v1/x3.png)
New research demonstrates a powerful method for uniquely determining a quantum potential by analyzing how a system evolves between initial and final states.
Stretching the Quantum Limit: How Strain Reveals Hidden Magnetism
![The study demonstrates that alterations in the Kondo lattice temperature [latex]T_{K}[/latex]-induced by applied strain-directly modulate electrical resistance, manifesting as a sign change in temperature dependence and a positive elastoresistance under a magnetic field, thereby revealing the interplay between material properties and externally applied forces.](https://arxiv.org/html/2602.12141v1/Fig1.jpg)
New research demonstrates a powerful connection between mechanical strain and the emergence of magnetic entropy in a heavy-fermion material, offering insights into its quantum critical behavior.
Unveiling the Rhythms of Distant Quasars
A new Bayesian framework leveraging Gaussian Processes is helping astronomers dissect the fluctuating light from quasars to refine our understanding of the universe’s expansion.
Mapping the Edge of Order: A New Look at Quantum Criticality
![The scaling dimension [latex]\Delta\phi[/latex] is calculated across different [latex]\mathrm{Sp}(10)[/latex] and [latex]\mathrm{Sp}(4)[/latex] models using conformal 2-pt correlators [latex]\mathscr{C}_T[/latex], revealing its dependence on both [latex]\gamma_{12}[/latex] and [latex]R[/latex], and consistently approaching the expected value of [latex]\Delta_J = 2[/latex] while aligning with the critical point previously identified through crossing symmetry.](https://arxiv.org/html/2602.11255v1/x8.png)
Researchers are using innovative simulations on a ‘fuzzy sphere’ to explore the behavior of quantum systems at the brink of phase transitions.
Mapping Hidden States: How Magnetoresistance Reveals Cuprate Secrets
![The Sondheimer frequency exhibits a clear dependence on doping concentration, transitioning predictably across the overdoped to underdoped regime under a perpendicular magnetic field-a relationship governed by parameters including a perpendicular transfer integral of [latex]3 \times 10^{-3} \text{eV}[/latex], zero phase shift [latex]\eta = 0[/latex], and a layer thickness ratio of [latex]d/a = 40[/latex].](https://arxiv.org/html/2602.11252v1/x6.png)
New research demonstrates that subtle changes in electrical resistance under a magnetic field can be used to chart the complex electronic structure of high-temperature superconductors.
Gravity’s Hidden Symmetry: Fermions and Bosons in Quantum Space
New research reveals that the fundamental nature of spacetime in loop quantum gravity allows for both fermionic and bosonic behavior in the excitations of the gravitational field.
Synthetic Data Boosts Exotic Hadron Hunt at the LHC
A new approach leveraging generative AI is enhancing the search for rare particles created in the extreme conditions of heavy-ion collisions.
Beyond the Standard Model: Hunting for the Elusive X17
![A search for minimal extensions to the Standard Model, constrained by parity violation limits and experimental data from NA64 and KLOE-2, reveals a landscape of viable neutron and proton couplings-specifically [latex]\epsilon_{n}^{V},\epsilon_{n}^{A},\epsilon_{p}^{V},\epsilon_{p}^{A}[/latex]-that simultaneously accommodate ATOMKI measurements at 99% confidence, potentially explaining the PADME excess through corresponding electron coupling values [latex]\epsilon_{e}^{V}[/latex].](https://arxiv.org/html/2602.11263v1/x5.png)
New research explores the potential role of a previously undetected vector boson, the X17, in explaining anomalies observed in nuclear decays.
Hunting Hidden Axions: New Limits from Missing Energy and Electric Dipoles
^{2}[/latex].](https://arxiv.org/html/2602.11405v1/feynman_GammaD_To_chi_chi.png)
A new analysis tightens the constraints on dark axion interactions, leveraging both searches for invisible particles and precise measurements of fundamental asymmetries.