Producing cluster states in charge qubits and flux qubits.
We propose a method to efficiently generate cluster states in charge qubits, both semiconducting and superconducting, as well as flux qubits. We show that highly entangled cluster states can be realized by a "one-touch" entanglement operation by tuning gate bias voltages for charge qubits. We also investigate the robustness of these cluster states for nonuniform qubits, which are unavoidable in solid-state systems. We find that quantum computation based on cluster states is a promising approach for solid-state qubits.
Tanamoto
Tetsufumi
T
Corporate R&D Center, Toshiba Corporation, Kawasaki 212-8582, Japan.
Liu
Yu-xi
YX
Fujita
Shinobu
S
Hu
Xuedong
X
Nori
Franco
F