Beyond Markov: Simulating the Quantum Roots of Cosmic Inflation
![The distribution of [latex]\widetilde{\phi}[/latex] for the [latex]\lambda\phi^{4}[/latex] potential, with [latex]\lambda = 0.25[/latex], demonstrates that even after reaching a stationary state at [latex]N=100[/latex], the system’s probabilistic profile remains distinguishable whether modeled through a full non-Markov simulation or a simplified Markovian approach, suggesting that approximations, while convenient, may not fully capture the nuanced reality of the underlying potential.](https://arxiv.org/html/2602.11652v1/x10.png)
New numerical simulations reveal the crucial role of quantum fluctuations and memory effects in the earliest moments of the universe.
Science
Light Interacting with Light: A New Frontier with Rydberg Atoms
![The study elucidates the mechanisms of Rydberg dephasing within a four-level microwave electro-induced transparency (EIT) system, demonstrating that interaction-induced dephasing-manifest in contributions from [latex]C_{6}^{33}[/latex], [latex]C_{6}^{44}[/latex], and [latex]C_{6}^{34}[/latex] terms-affects levels [latex]\ket{3}[/latex] and [latex]\ket{4}[/latex] differently at a probe rate of 8.9 μs⁻¹, revealing the nuanced decay of quantum coherence within complex atomic ensembles.](https://arxiv.org/html/2602.11563v1/x4.png)
Researchers are harnessing the unique properties of Rydberg atoms to explore novel nonlinear optical phenomena and their potential for advanced quantum sensing applications.
Twisting Reality: How Spin and Lattice Interact to Create Novel Material States
![The study demonstrates that a specific spin configuration within the Ising Hamiltonian-characterized by [latex]1/9[/latex] and [latex]1/9[/latex]-plateau states-induces a corresponding lattice distortion, subsequently manifesting as a unique phonon spectrum along the K-Γ-M-K pathway and exhibiting distinct characteristics within localized regions of that spectrum.](https://arxiv.org/html/2602.12168v1/x8.png)
New research reveals that the interplay between magnetic spins and the structure of crystalline materials can give rise to emergent mechanical phenomena and robust topological properties.
Beyond Equilibrium: Unveiling the Secrets of Fluctuations
This review explores fluctuation theorems, powerful tools for understanding how deviations from average behavior reveal fundamental properties of systems far from equilibrium.
Beyond Einstein: Refining Gravity with Scalar Fields
![In Entangled Relativity, the relative variation of a constant, [latex]\frac{C\_{i}-C\_{0}}{C\_{0}}[/latex], is numerically integrated and demonstrably changes with radius, exhibiting a dependency linked to a central density of 100 MeV/fm[latex]^{3}[/latex].](https://arxiv.org/html/2602.11811v1/first_integral_constant.png)
New research delivers precise calculations of how alternative gravity theories diverge from General Relativity in extreme cosmic scenarios.
Beyond Anomalies: How Symmetry Constraints Dictate Matter’s Behavior
New research demonstrates that enforcing constraints arising from multiple symmetries can guarantee gapless phases in physical systems, offering a novel pathway beyond traditional anomaly-driven mechanisms.
When Watching Changes Everything: How AI Learns to Forget Physics
![Fine-tuning a structured semantic similarity learning (SSL) model-initially characterized by strong correlation at [latex]\rho=0.94[/latex]-destroys its inherent geometric organization, plummeting correlation to [latex]-0.03[/latex] and causing the resulting invasive probe to fail unpredictably on out-of-distribution tasks, a consequence avoided by a more robust, non-invasive probing method maintaining correlation above [latex]\rho=0.8[/latex].](https://arxiv.org/html/2602.12218v1/x8.png)
New research reveals that standard machine learning techniques can inadvertently corrupt a model’s underlying understanding of physical principles, impacting its ability to accurately simulate the world.
Unlocking Quantum Secrets with Charge and Entanglement
New research leverages ballistic fluctuation theory to map the behavior of charged particles and quantum entanglement in complex systems, even after a disruptive event.
Entanglement Survives the Abyss: A Robust Quantum State Near Black Holes
New research reveals a uniquely stable quantum state that maintains maximal entanglement even when exposed to the intense gravitational forces and Hawking radiation surrounding a black hole.
Building Blocks for Reality: A Systematic Approach to Effective Field Theories
Researchers have developed a robust method for constructing the fundamental operator bases used to describe interactions in non-relativistic effective field theories.