Superconducting qubit network with controllable nearest neighbor coupling
Journal article, 2005

We investigate the design and functionality of a network of loop-shaped charge qubits with switchable nearest-neighbour coupling. The qubit coupling is achieved by placing large Josephson junctions (JJs) at the intersections of the qubit loops and selectively applying bias currents. The network is scalable and makes it possible to perform a universal set of quantum gates. The coupling scheme allows gate operation at the charge degeneracy point of each qubit, and also applies to charge-phase qubits. Additional JJs included in the qubit loops for qubit readout can also be employed for qubit coupling.

solid state qubits

Quantum computation

superconducting circuits

Author

Margareta Wallquist

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Jonn Lantz

Chalmers, Microtechnology and Nanoscience (MC2)

Vitaly Shumeiko

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Göran Wendin

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

New Journal of Physics

1367-2630 (ISSN)

Vol. 7 178

Subject Categories

Other Engineering and Technologies

Condensed Matter Physics

DOI

10.1088/1367-2630/7/1/178

More information

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9/7/2018 8