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    Quantum Entanglement realized between Distant Large Objects

    October 1, 2020, Categories  Physics

    Quantum entanglement realized between distant large objects
    Light propagates through the atomic cloud shown in the center and then falls onto the SiN membrane shown on the left. As a result of interaction with light the precession of atomic spins and vibration of the membrane become quantum correlated. This is the essence of entanglement between the atoms and the membrane. Credit: Niels Bohr Institute

    A team of researchers at the Niels Bohr Institute, University of Copenhagen, have succeeded in entangling two very different quantum objects. The result has several potential applications in ultra-precise sensing and quantum communication and is now published in Nature Physics.

    Entanglement is the basis for quantum communication and quantum sensing...

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    Invention could make Particle Accelerators 10 times Smaller

    September 29, 2020, Categories  Physics

    Terahertz acclerator structure
    SLAC scientists have invented a copper accelerator structure that could make future X-ray lasers and accelerators for radiation therapy more compact. It feeds terahertz radiation into a tiny cavity to boost particles to tremendous energies. This image shows one half of the structure with the cavity in the circled area. Inset: Scanning electron microscope image of a section of the cavity, which is 3.5 millimeters long and 280 microns wide at its narrowest point. (Chris Pearson/Emilio Nanni/SLAC National Accelerator Laboratory)

    It uses terahertz radiation to power a miniscule copper accelerator structure...

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    Controlling Ultrastrong Light-Matter Coupling at Room Temperature

    September 28, 2020, Categories  Physics

    Illustration
    Researchers have shown that it is possible to create a controllable ultrastrong light-matter coupling at room temperature. The interaction is realised within a tiny system consisting of two gold mirrors separated by a small distance and plasmonic gold nanorods. The discovery is of importance for fundamental research and might pave the way for advances within, for example, light sources, nanomachinery, and quantum technology.​​​​​ ​Illustration: Denis Baranov

    Physicists at Chalmers University of Technology in Sweden, together with colleagues in Russia and Poland, have managed to achieve ultrastrong coupling between light and matter at room temperature...

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    Parylene Photonics enable Future Optical Biointerfaces

    September 24, 2020, Categories  Physics, Technology/Electronics, Health/Medical

    A Parylene photonic waveguide surrounded by neurons.
    CREDIT
    Carnegie Mellon University College of Engineering

    Carnegie Mellon University’s Maysam Chamanzar and his team have invented an optical platform that will likely become the new standard in optical biointerfaces. He’s labeled this new field of optical technology “Parylene photonics,” demonstrated in a recent paper in Nature Microsystems and Nanoengineering.

    There is a growing and unfulfilled demand for optical systems for biomedical applications. Miniaturized and flexible optical tools are needed to enable reliable ambulatory and on-demand imaging and manipulation of biological events in the body. Integrated photonic technology has mainly evolved around developing devices for optical communications...

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