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Quantum computing researchers teleport data inside a diamond



Researchers at Yokohama National University have successfully teleported quantum information within the confines of a diamond. The team says the study has significant implications for quantum information technology and how it is stored and shared in the future. Researcher Hideo Kosaka says that quantum teleportation permits the transfer of quantum information into an otherwise inaccessible space.
                 

He says it also allows the transfer of information into a quantum memory without revealing or destroying the stored quantum information. In the experiment, the team ran the inaccessible space they used carbon atoms inside a diamond. Those atoms are made of linked but contemplated carbon atmos.

Each carbon atom has six protons and six neutrons in the nucleus surrounded by six spinning electrons. When they bond in a diamond, the lattice they create is notoriously strong. However, there may be a problem with a nitrogen atom in one of two adjacent vacancies; this is a nitrogen-vacancy center. Kosaka calls a nanomagnet.

The researchers connect a wire about a quarter of the width of a human hair to the diamond. A microwave and a radio wave are applied to the wire to build an oscillating magnetic field around the diamond. The microwave is shaped to create optimal and controlled conditions for the transfer of quantum information inside the diamond. The nitrogen nanomagnet is used to anchor an electron.

Using the microwave and radio waves, the researcher is deciding to use a nuclear spin. The election spin breaks down under a magnetic field to make it susceptible to entanglement. Once entangled, the physical characteristics are so intertwined that they can not be described individually. A photon holding quantum information is applied and the electron absorbs the photon. That allows the polarization state of the photon to be transferred to the carbon, demonstrating the teleportation of information at a quantum level. The team wants to realize scalable quantum repeaters for long-haul quantum communications.

  
                

 
      
        
                


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