All articles tagged with #axion
Physicists suggest that if dark energy is evolving as recent data indicates, the universe may end in a Big Crunch in about 33.3 billion years, reversing its expansion due to a negative cosmological constant and the influence of ultralight axion particles, though this remains a hypothesis pending further data.
Physicists suggest that if dark energy is evolving as recent data indicates, the universe may end in a Big Crunch in about 20 billion years, reversing its expansion due to a negative cosmological constant and the influence of ultralight axion particles, though this remains a hypothesis pending further data.
A new study suggests the universe may not expand forever but could eventually reverse and collapse in a 'big crunch' in about 33 billion years, based on a model involving a negative cosmological constant and dark energy dynamics, challenging previous assumptions of endless expansion.
A video from Quanta Magazine showcases the search for dark matter led by physicist Alex Sushkov at Boston University, focusing on the hypothetical particle known as the axion, featuring lab footage and animated explainers.
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.
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.
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.