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Category: computing – Page 219

Services for modeling the effects of nuclear weapons on agricultural systems

This is a U.S. General Services Administration Federal Government computer system that is “FOR OFFICIAL USE ONLY.” This system is subject to monitoring. Individuals found performing unauthorized activities are subject to disciplinary action including criminal prosecution.

This system contains Controlled Unclassified Information (CUI). All individuals viewing, reproducing or disposing of this information are required to protect it in accordance with 32 CFR Part 2002 and GSA Order CIO 2103.2 CUI Policy.

Axon-like active signal transmission

Dr. Tim Brown.

Taking…

Axon-mimicking Materials for Computing https://engineering.tamu.edu/news/2024/09/axon-mimicking-mat…uting.html.

Biology does things differently: some signals in the brain are also transmitted across centimeter distances, but through…

A method using semi-stable edge of chaos in LaCoO3 enables continuous signal amplification in metallic conductors without separate amplifiers, potentially revolutionizing electronic chip design.

Simulation theory: why The Matrix may be closer to fact than fiction

“The Matrix” may have been right all along. The idea that we are all living in a virtual simulation of reality formed the basis of the 1999 cult film, and now some philosophers and an increasing number of scientists are coming round to the idea it might actually be true.

Simulation theory, as it is known, is a “theoretical hypothesis that says what people perceive as reality is actually an advanced, hyper-realistic computer simulation, possibly overseen by a higher being”, said BuiltIn.

New phase of matter: 2D Bose glass could advance quantum storage

As its name implies, the Bose glass exhibits certain glass-like properties, with all particles in the system becoming localized. This means that each particle remains confined to its position, without interacting or blending with its neighbors.

If coffee behaved in this way, for example, stirring milk into it would result in a permanent pattern of black and white stripes that never mix into a uniform color.

In a localized system like the Bose glass, particles don’t mix with their environment, which suggests that quantum information stored within such a system could be retained for much longer periods. This property has significant implications for quantum computing and information storage.

New classical algorithm enhances understanding of quantum computing’s future

In an exciting development for quantum computing, researchers from the University of Chicago’s Department of Computer Science, Pritzker School of Molecular Engineering, and Argonne National Laboratory have introduced a classical algorithm that simulates Gaussian boson sampling (GBS) experiments.

Super-Earth Exoplanet Formation Becomes Nearly Impossible Around Metal-Poor Stars

How can the metal content of stars influence the formation of Earth-like exoplanets? This is what a recent study published in The Astronomical Journal hopes to address as an international team of researchers investigated the minimum amount of metals a star can possess (also called metallicity) that are needed for Earth-like planets to form in small orbits like our own. This study holds the potential to help researchers better understand the necessary conditions for Earth-like exoplanets to form, along with gaining new insights into the formation and evolution of other exoplanets.

This research builds off previous studies that hypothesized a correlation between star’s low metallicity and the formation of exoplanets smaller than Saturn or Neptune. For this new study, the researchers used computer models built from exoplanet data obtained by NASA’s Transiting Exoplanet Survey Satellite (TESS) mission to ascertain a metallicity cutoff where the formation of Earth-like exoplanets become impossible. In the end, the researchers indicated that a threshold between-0.75 and-0.5 metallicity is where Earth-like exoplanets can form.

“In a similar stellar type as our sample, we now know not to expect planet formation to be abundant once you pass a negative 0.5 metallicity region,” said Dr. Kiersten Boley, who recently completed her PhD at The Ohio State University and is lead author of the study. “That’s kind of striking because we actually have data to show that now. You don’t want to search areas where life wouldn’t be conducive or in areas where you don’t even think you’re going to find a planet. There’s just a plethora of questions that you can ask if you know these things.”

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