Free Energy Universality
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Free Energy Universality in Tensor Estimation via Generic Chaining
arXiv:2605.30636v1 Announce Type: cross Abstract: We study high-dimensional inference problems with tensor-structured data and establish conditions under which their free energy can be approximated by that of a Gaussian comparison model. Our framework applies to models with independent observations and mismatch between the data-generating distribution and the statistical model. The results extend prior work beyond matrix settings and accommodate scaling regimes where the model parameters...
Universal Extremum Seeking Mechanism for Lift Variation in Soaring Birds Flight: A New Paradigm in Computational Physics and Biology
arXiv:2605.20232v2 Announce Type: replace Abstract: In this letter, we reveal a universal, very simple extremum seeking natural feedback law and mechanism that governs, adapts, and generates in real-time, optimized lift variations for successful energy gain flight in presence of wind shear. The introduced law/mechanism, which is computationally minimal and needs only sensory information of the wind or local energy rate (i.e., model-free and data-driven) is able to characterize and replicate...
Nanoengineered materials can store and release hydrogen at room temperature
June 1, 2026 feature Nanoengineered materials can store and release hydrogen at room temperature Ingrid Fadelli Author Sadie Harley Scientific Editor Robert Egan Associate Editor Energy engineers worldwide are working on various new technologies that could help to limit greenhouse gas emissions on Earth and address climate change. One proposed alternative to polluting fossil fuels, such as petrol, diesel and natural gas, is hydrogen. Hydrogen is a clean fuel that can be used to power fuel...
Trump admin’s cancellation of wind energy projects causes business turmoil
Trump admin’s cancellation of wind energy projects causes business turmoil Seven northeastern states have sued US gov’t for paying TotalEnergies to withdraw from offshore wind projects. French energy giant TotalEnergies is embroiled in a lawsuit between seven US states and the federal government as the administration of President Donald Trump upends domestic energy policy, shutting down some wind energy projects while pushing fossil fuels. It has also raised questions about the...
The people who actually want AI to replace humanity
“I want AI to be a tool that allows human flourishing!” exclaimed Brad Carson, a former member of Congress. “There is an option out there where AI is just a tool for us.” The people who actually want AI to replace humanity We need to create a new humanism before the “AI successionists” win.
Three- and four-boson systems expanded around the unitarity limit: Application to $^4$He
Announce Type: cross Abstract: The three- and four-boson systems with a large scattering length and a short effective range in the two-body sector are studied in the framework of Short-Range Effective Field Theory. The starting point (leading order) of the EFT is taken to be the universal unitarity limit, where the two-body sector is parameter-free and only one three-body parameter enters. In this limit, physical systems manifests discrete scale invariance.
Amplification at Equilibrium: Structural and Thermodynamic Limitations, and Implementation
arXiv:2604.04285v2 Announce Type: replace-cross Abstract: Amplifying weak molecular signals is essential in both natural and engineered biochemical systems. While most amplification schemes operate out of equilibrium, relying on kinetic barriers and fuel-driven cascades, it is also possible to amplify at thermodynamic equilibrium by shifting the energy landscape upon addition of an analyte. Equilibrium amplification is appealing because, in principle, it can remain indefinitely in the...
Amplification at Equilibrium: Structural and Thermodynamic Limitations, and Implementation
arXiv:2604.04285v2 Announce Type: replace-cross Abstract: Amplifying weak molecular signals is essential in both natural and engineered biochemical systems. While most amplification schemes operate out of equilibrium, relying on kinetic barriers and fuel-driven cascades, it is also possible to amplify at thermodynamic equilibrium by shifting the energy landscape upon addition of an analyte. Equilibrium amplification is appealing because, in principle, it can remain indefinitely in the...
In situ nanocrystal confinement for efficient blue perovskite LEDs
Abstract Metal halide perovskites have emerged as promising semiconductors for light-emitting diodes (LEDs) owing to their excellent luminescence properties1. However, their performance remains limited, primarily owing to the inherent contradiction between ‘high crystallinity’ and ‘small size’ in the in situ synthesis of perovskite nanocrystals on substrates. Here we report efficient blue perovskite LEDs (PeLEDs) achieved via in situ polymerization-driven nanocrystal confinement to...