Quantum-information processing using Josephson junctions coupled through cavities

2003/04/30 by Shi-Liang Zhu, Z. D. Wang, Kaiyu Yang · 1 citation
Computer Science · Physics and Astronomy · #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum optics and atomic interactions #quant-ph

paper · pdf · doi:10.1103/physreva.68.034303

published as Phys. Rev. A 68, 034303 (2003) · 5 pages, to appear in Phys Rev A; typos corrected, solutions in last eqs. corrected

arxiv created 2003/07/16 · openalex publication_date 2003/09/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Josephson junctions have been shown to be a promising solid-state system for implementation of quantum computation. The two-qubit gates are generally realized by the capacitive coupling between the nearest-neighbor qubits. We propose an effective Hamiltonian to describe charge qubits coupled through the microwave cavity. We find that nontrivial two-qubit gates may be achieved by this coupling. The ability to interconvert localized charge qubits and flying qubits in the proposed scheme implies that quantum network can be constructed using this large scalable solid-state system.

Citations

• Coherent control of macroscopic quantum states in a single-Cooper-pair box
• Quantum Manipulations of Small Josephson Junctions
• Universal quantum computation with two-level trapped ions
• Josephson-junction qubits with controlled couplings
• Quantum-state engineering with Josephson-junction devices
• The Physical Implementation of Quantum Computation

Cited by

• Superconducting qubits coupled to nanoelectromechanical resonators: An architecture for solid-state quantum-information processing