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    quantum sensor tagged posts

    Quantum Sensor can detect Electromagnetic Signals of any Frequency

    June 22, 2022, Categories  Physics

    Quantum sensors
    Caption:MIT researchers have developed a method to enable quantum sensors to detect any arbitrary frequency, with no loss of their ability to measure nanometer-scale features. Quantum sensors detect the most minute variations in magnetic or electrical fields, but until now they have only been capable of detecting a few specific frequencies, limiting their usefulness. Pci
    Credits:Credit: Guoqing Wang

    Engineers expand the capabilities of these ultrasensitive nanoscale detectors, with potential uses for quantum computing and biological sensing. Quantum sensors, which detect the most minute variations in magnetic or electrical fields, have enabled precision measurements in materials science and fundamental physics...

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    Single Atom Memory: The World’s Smallest Storage Medium

    March 9, 2017, Categories  Physics, Technology/Electronics

    A holmium (Ho) and a iron (Fe) atom placed on a MgO substrate are the components for the world's smallest memory device. Ho is used as a storage medium and Fe as a sensor were. The magnetism of the holmium atom can be changed or read by flowing current through the STM tip.

    A holmium (Ho) and a iron (Fe) atom placed on a MgO substrate are the components for the world’s smallest memory device. Ho is used as a storage medium and Fe as a sensor were. The magnetism of the holmium atom can be changed or read by flowing current through the STM tip.

    Storing 1 bit in 1 atom is possible: The extraordinary end of Moore’s law. One bit of digital information can now be successfully stored in an individual atom, according to a study just published in Nature. Current commercially-available magnetic memory devices require approximately 1 million atoms to do the same...

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