Ensemble quantum-information processing by NMR : Implementation of gates and the creation of pseudopure states using dipolar coupled spins as qubits

Quantum-information processing is carried out using dipolar coupled spins and high-resolution nuclear magnetic resonance ~NMR!. The systems chosen are the dipolar coupled methyl protons of CH 3CN partially oriented in a liquid crystalline matrix yielding a two-qubit system and dipolar coupled C and methyl protons of CH3CN also partially oriented in the… CONTINUE READING