indirect control of cnot gate on nuclear spin qubits

Quantum computing and quantum information processing (qc/qip) has rapidly grown with the promise of realizing a quantum computer that will outperform its classical counterpart in making use of quantum properties such as superposition and entangled states. toward the realization of qc/qip, we need to fully control the quantum system, which means the implementation of any unitary operation on the system with its quantum coherence kept through the operation. high fidelity applications of single- and two-qubit operations to arbitrary qubits have been greatly desired.