Physicists have made a groundbreaking discovery that confirms a century-old quantum theory by capturing images of free-range atoms interacting in space for the first time.
Category: quantum physics – Page 81
Scientists discover quantum computing in the brain
Kurian’s group believes these large tryptophan networks may have evolved to take advantage of their quantum properties. When cells breathe using oxygen—a process called aerobic respiration—they create free radicals, or reactive oxygen species (ROS). These unstable particles can emit high-energy UV photons, which damage DNA and other important molecules.
Tryptophan networks act as natural shields. They absorb this harmful light and re-emit it at lower energies, reducing damage. But thanks to superradiance, they may also perform this protective function much more quickly and efficiently than single molecules could.
Are Many Worlds & Pilot Wave THE SAME Theory?
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It’s hard to interpret the strange results of quantum mechanics, though many have tried. Interpretations range from the outlandish—like the multiple universes of Many Worlds, to the almost mundane, like the very mechanical Pilot Wave Theory. But perhaps we’re converging on an answer, because some are arguing that these two interpretations are really the same thing.
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Why physicists keep trying to get rid of space-time entirely
Physicists are trying to ditch the concept of space-time – the supposed fabric of physical reality. Quantum columnist Karmela Padavic-Callaghan explains why.
New microwave-to-optical transducer uses rare-earth ions for efficient quantum signal conversion
Quantum technologies, which leverage quantum mechanical effects to process information, could outperform their classical counterparts in some complex and advanced tasks. The development and real-world deployment of these technologies partly relies on the ability to transfer information between different types of quantum systems effectively.
A long-standing challenge in the field of quantum technology is converting quantum signals carried by microwave photons (i.e., particles of electromagnetic radiation in the microwave frequency range) into optical photons (i.e., visible or near visible light particles). Devices designed to perform this conversion are known as microwave-to-optical transducers.
Researchers at the California Institute of Technology recently developed a new microwave-to-optical transducer based on rare-earth ion-doped crystals. Their on-chip transducer, outlined in a paper published in Nature Physics, was implemented using ytterbium-171 ions doped in a YVO4 crystal.