Graphene is the darling material for next generation computing, and now researchers have found a way to use it in future quantum computers as well.
"Valleytronics"--mimicking the name of its rival spintronics--may yield a new encoding technique for quantum bits (qubits) traveling like waves in valleys of dual-layer graphene. Instead of encoding a qubit's quantum information on the spin of an electron--as in spintronics--valleytronics encodes qubits with the momentum imparted by an electron-wave traveling in numbered valleys along the domain walls in dual-layer graphene. Separately, Georgia Tech and Honeywell have micro-fabricated an ion trap architecture aimed at increasing the density of qubits in future quantum computers.
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