Superconducting qubit network with controllable nearest neighbor coupling
Artikel i vetenskaplig tidskrift, 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.

Quantum computation

solid state qubits

superconducting circuits

Författare

Margareta Wallquist

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

Jonn Lantz

Vitaly Shumeiko

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

Göran Wendin

Chalmers, Mikroteknologi och nanovetenskap (MC2), Tillämpad kvantfysik

New Journal of Physics

Vol. 7 178-

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