Geometric Quantum Computation and Multiqubit Entanglement with Superconducting Qubits inside a Cavity

Shi-Liang Zhu, Z. D. Wang, Paolo Zanardi
2005 Physical Review Letters  
We analyze a new scheme for quantum information processing, with superconducting charge qubits coupled through a cavity mode, in which quantum manipulations are insensitive to the state of the cavity. We illustrate how to physically implement universal quantum computation as well as multi-qubit entanglement based on unconventional geometric phase shifts in this scalable solid-state system. Some quantum error-correcting codes can also be easily constructed using the same technique. In view of
more » ... gate dependence on just global geometric features and the insensitivity to the state of cavity modes, the proposed quantum operations may result in high-fidelity quantum information processing.
doi:10.1103/physrevlett.94.100502 pmid:15783466 fatcat:vfhfow4kwrdj5ftb4tuocvvhcu