Heating up A false-colour electron microscope image of the device, which creates entangled pairs of electrons. The green layers are graphene on top of the grey superconductor. The two quantum dots can be seen protruding into the superconductor channel in the centre of the image. The blue metal electrodes are on the top layer and are used to extract the entangled electrons. (Courtesy: Aalto University)
A new device that produces entangled pairs of electrons by the application of heat has been unveiled
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