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Many-body strategies for multiqubit gates: Quantum control through Krawtchouk-chain dynamics
Physical Review A
We propose a strategy for engineering multi-qubit quantum gates. As a first step, it employs an eigengate to map states in the computational basis to eigenstates of a suitable many-body Hamiltonian. The second step employs resonant driving to enforce a transition between a single pair of eigenstates, leaving all others unchanged. The procedure is completed by mapping back to the computational basis. We demonstrate the strategy for the case of a linear array with an even number N of qubits, withdoi:10.1103/physreva.97.042321 fatcat:6p3pzivtvjemhlwday6xhvesfi