Dynamical decoupling of superconducting qubits

Details Dynamical decoupling of superconducting qubits Dynamical decoupling of superconducting qubits

2012-03-06

arxiv.org/abs/1203.1223v1

J. Phys.: Conf. Ser. 338,012010 (2012)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 figures, 6 pages

Scientific paper

10.1088/1742-6596/338/1/012010

We show that two superconducting qubits interacting via a fixed transversal coupling can be decoupled by appropriately-designed microwave feld excitations applied to each qubit. This technique is useful for removing the effects of spurious interactions in a quantum processor. We also simulate the case of a qubit coupled to a two-level system (TLS) present in the insulating layer of the Josephson junction of the qubit. Finally, we discuss the qubit-TLS problem in the context of dispersive measurements, where the qubit is coupled to a resonator.

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