One-step implementation of a multi-target-qubit controlled phase gate in a multi-resonator circuit QED system. (English) Zbl 1398.81057
Summary: Circuit quantum electrodynamics system composed of many qubits and resonators may provide an excellent way to realize large-scale quantum information processing (QIP). Because of key role for large-scale QIP and quantum computation, multi-qubit gates have drawn intensive attention recently. Here, we present a one-step method to achieve a multi-target-qubit controlled phase gate in a multi-resonator system, which possesses a common control qubit and multiple different target qubits distributed in their respective resonators. Noteworthily, the implementation of this multi-qubit phase gate does not require classical pulses, and the gate operation time is independent of the number of qubits. Besides, the proposed scheme can in principle be adapted to a general type of qubits like natural atoms, quantum dots, and solid-state qubits (e.g., superconducting qubits and NV centers).
MSC:
| 81P68 | Quantum computation |
| 81V10 | Electromagnetic interaction; quantum electrodynamics |
| 78A25 | Electromagnetic theory (general) |
| 94B70 | Error probability in coding theory |
| 94B65 | Bounds on codes |
Keywords:
circuit quantum electrodynamics; large-scale QIP; multi-target-qubit gate; multi-resonator systemReferences:
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