Articles tagged with "quantum-technology"
New approach allows to insert, monitor quantum defects in real time
Researchers from the UK’s universities of Oxford, Cambridge, and Manchester have developed a novel two-step fabrication method that enables the precise insertion and real-time monitoring of quantum defects—specifically Group IV centers such as tin-vacancy centers—in synthetic diamonds. These quantum defects, created by implanting single tin atoms into diamond with nanometer accuracy using a focused ion beam, serve as spin-photon interfaces essential for storing and transmitting quantum information. The process is activated and controlled via ultrafast laser annealing, which excites the defect centers without damaging the diamond and provides spectral feedback for in-situ monitoring and control during fabrication. This breakthrough addresses a major challenge in reliably producing Group IV quantum defects, which are prized for their high symmetry and favorable optical and spin properties. The ability to monitor defect activation in real time allows researchers to efficiently and precisely create quantum emitters, paving the way for scalable quantum networks that could enable ultrafast, secure quantum computing and sensing technologies. The method’s versatility also suggests
quantum-defectsdiamond-materialsnanoscale-engineeringquantum-computingquantum-sensingmaterials-sciencequantum-technologyUS quantum tech tracks 3D acceleration to boost GPS-free navigation
Researchers at the University of Colorado Boulder have developed a novel quantum-based atom interferometer capable of measuring acceleration in three dimensions (3D), a significant advancement over traditional accelerometers that measure acceleration only in one dimension. The device uses six ultra-thin lasers and tens of thousands of rubidium atoms cooled to near absolute zero to create a Bose-Einstein Condensate (BEC), placing atoms in a superposition state. By manipulating these atoms with lasers and analyzing their interference patterns, the interferometer can precisely detect acceleration without the aging issues that affect conventional electronic sensors like those used in GPS systems. This compact system, roughly the size of an air hockey table, represents an engineering breakthrough with potential applications in spacecraft, submarines, and vehicles for GPS-free navigation. The researchers employed artificial intelligence to manage the complex laser operations required to split and recombine the atom clouds. Currently, the device can detect accelerations thousands of times smaller than Earth’s gravity, and the team anticipates further improvements. This technology
quantum-technologyatom-interferometer3D-acceleration-measurementnavigation-technologysensorsBose-Einstein-Condensaterubidium-atomsFormer UR president Povlsen joins quantum technology leader
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