Quantum Information Processing with Delocalized Qubits under Global Control
Quantum Information Processing with Delocalized Qubits under Global Control
Conventional quantum computing schemes are incompatible with nanometer-scale ``hardware,'' where the closely packed spins cannot be individually controlled. We report the first experimental demonstration of a global control paradigm: logical qubits delocalize along a spin chain and are addressed via the two terminal spins. Using NMR studies on a three-spin …