Kramers versus Kramers makes a stable qubit
Graphene
Anasua Chatterjee (TU Delft - QuTech Advanced Research Centre, TU Delft - QRD/Chatterjee Lab, TU Delft - Applied Sciences, Kavli institute of nanoscience Delft)
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Abstract
In a gate defined quantum dot in Bernal bilayer graphene, a combination of spin and valley protection diminishes spin relaxation drastically and yields a lifetime of 38 seconds.