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Axion

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Cosmic Collapse in 33 Billion Years: A New Model Rewrites the Universe’s Fate
astronomy27 days ago

Cosmic Collapse in 33 Billion Years: A New Model Rewrites the Universe’s Fate

A new arXiv cosmological model called the axion dark energy (aDE) framework argues that dark energy could evolve rather than stay constant, slowing the expansion until the Universe reverses into a contraction and a Big Crunch roughly 33.3 billion years from now. The model aligns with DES/DESI observations but implies a dramatic shift from the prevailing eternal-acceleration view, underscoring the need for more data to validate or refine this scenario.

via The Daily Galaxy|
#astronomy#axion#bigcrunch
Universe Could End in 33 Billion Years, New Dark-Energy Model Suggests
space28 days ago

Universe Could End in 33 Billion Years, New Dark-Energy Model Suggests

A new study applying a hybrid axion dark energy model to Dark Energy Survey data hints that dark energy may be dynamic. If correct, this could cause the universe’s expansion to slow, halt, and reverse, leading to a Big Crunch about 33.3 billion years from now—much sooner than the trillion-year lifetime traditionally assumed—though the result depends on several variables and requires further verification.

via Live Science|
#axion#big-crunch#cosmology
"Google Introduces Axion: Its In-House Arm-Based CPU for Data Centers"
technology2 years ago

"Google Introduces Axion: Its In-House Arm-Based CPU for Data Centers"

Google announces Axion, its first Arm-based CPU designed for data centers, claiming 30% better performance than its fastest general purpose Arm-based tools in the cloud and 50% better performance than comparable x86-based VMs, while being 60% more energy efficient. This move puts Google in competition with Amazon's Graviton processor and NVIDIA's Grace, signaling a shift from primarily consumer-focused processors to data center solutions. The announcement comes amid concerns about the energy usage of AI models, with Arm's CEO warning about the increasing power requirements and stressing the need for greater efficiency.

via Engadget|
#arm-based-cpu#axion#cloud-computing
"Google Unveils Axion: Its Inaugural Custom Arm-based Data Center Processor"
technology2 years ago

"Google Unveils Axion: Its Inaugural Custom Arm-based Data Center Processor"

Google Cloud announces its first custom-built Arm processor, Axion, based on Arm’s Neoverse 2 designs, claiming 30% better performance than competitors' Arm-based instances and up to 50% better performance and 60% better energy efficiency than comparable X86-based instances. However, Google did not provide documentation to support these claims or details on availability, pricing, or technical data. The company emphasized that Axion is built on an open foundation, allowing customers to bring existing Arm workloads to Google Cloud without modifications, and plans to release technical documentation later this year.

via TechCrunch|
#arm-based-processor#axion#cloud-computing
Sensitive Laser Experiment Searches for Dark Matter Particles
science3 years ago

Sensitive Laser Experiment Searches for Dark Matter Particles

The ALPS II experiment, designed to detect axionic dark matter, could expose particles responsible for dark matter. The experiment involves a wall that light cannot pass through, but an axion could. If light shows up on the far side of the experiment, it would indicate that a photon turned into an axion, transitted the wall, and reverted to a photon. The experiment will begin its search in an “attenuated operating mode” and is expected to reach full sensitivity later this year. The first data from the experiment is expected in 2024.

via Gizmodo|
#alps-experiment#axion#dark-matter