![For neural networks exceeding a critical size [latex]N\geq N\_{\mathrm{crit}}[/latex], the transition boundary between a deconfined quantum spin Hall state and superconductivity is hypothesized to host a unique phase characterized by extraordinary-log correlations at [latex]q\approx N/4[/latex], where boundary fermions couple to bulk gauge fluctuations and an unstable [latex]\mathrm{PSU}(N)=\mathrm{SU}(N)/\mathbb{Z}\_{N}[/latex] order parameter ultimately evolves towards a conventional boundary phase at larger network sizes.](https://arxiv.org/html/2601.07923v1/boundary-phases.png)
Researchers have discovered a novel class of quantum behavior at the boundary between distinct quantum phases, revealing unexpected correlations that scale with the complexity of the underlying physics.
New research reveals that coherent interference in strong-field physics can create effective two-level quantum systems, dubbed ‘attosecond path qubits’, opening avenues for unprecedented control over electron dynamics.
![The study of string breaking reveals a peak in entanglement entropy, antiflatness, and a quantifiable upper bound on nonlocality [latex]\mathcal{M}_{2}[/latex] at a separation of 46.5 spatial sites, suggesting a critical distance where quantum complexity reaches its maximum within the system, despite the inevitable decay inherent in all physical configurations.](https://arxiv.org/html/2601.08825v1/x3.png)
New research delves into the quantum dynamics of string breaking, offering a fresh perspective on how particles emerge from the fundamental forces of nature.
![The stabilized modes exhibit kinetic action proportional to the expression [latex]\big((-k\_{0}^{2}+\vec{k}^{2})(k\_{0}^{2}-\vec{k}^{2}/5+0.1)-0.015+0.355k\_{0}^{2}\big)[/latex], indicating a complex interplay between initial and propagated wave vectors, modulated by constants that define the system’s inherent stability and responsiveness.](https://arxiv.org/html/2601.08031v1/x5.png)
New research explores how the fundamental structure of spacetime, as described by the IKKT matrix model, can give rise to apparent modifications of gravity at cosmic scales.
A new theory proposes that quantum speedup arises from a retrocausal mechanism, suggesting that future outcomes can influence present processes.
A new analysis challenges a recent attempt to redefine quantum superposition using Möbius transformations, finding it either equivalent to standard quantum mechanics or fundamentally inconsistent.
![The analysis of proton fraction ([latex]X_p[/latex]) contributions, delineated between the NL and NL-hyp models as detailed in Table 1, demonstrates how saturation properties disproportionately influence nuclear behavior, suggesting these properties are not merely a detail of the model, but a fundamental aspect of the system being represented.](https://arxiv.org/html/2601.07727v1/Nmps-xp-hyp.png)
Researchers are employing symbolic regression to decipher the complex connections between the fundamental properties of nuclear matter and the observable characteristics of neutron stars.
A new perspective challenges conventional thinking about CP violation in quantum chromodynamics, suggesting the issue stems from unstated assumptions about gauge field behavior.
A new analysis explores how matter interacts with a particularly complex form of gravity, revealing crucial consistency conditions for its holographic properties.
![The study of neon, magnesium, and silicon isotopes reveals a shift in nuclear structure-from predominantly normal configurations to increasingly complex intruder configurations-correlated with a measurable increase in proton-neutron entanglement entropy as nuclei move beyond the [latex]N=20[/latex] shell closure, suggesting entanglement serves as a key indicator of evolving nuclear behavior.](https://arxiv.org/html/2601.06544v1/x2.png)
A new study utilizes advanced quantum calculations to explore the subtle entanglement patterns within exotic neutron-rich nuclei, offering insights into nuclear structure and potential applications in quantum information science.