META 2021, META'12

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Superconducting multi-qubit systems: towards quantum metamaterials
E. Il’ichev

Last modified: 2011-12-05

Abstract


We investigated microwave properties of superconducting multi-qubit systems.  In the first set of experiments a frequency-selective readout for an array of 7 flux qubits has been demonstrated. Each qubit is located in its own λ/4 resonator. The resonators with slightly different resonant frequencies are coupled to a single high-frequency transmission line. Using just one cold amplifier we performed spectroscopy of all qubits and determined their parameters in situ. In the second set of experiments we studied the propagation of the microwave power through a transmission line, formed by superconducting flux qubits inside a superconducting resonator. Obtained results are discussed.

Keywords


Metamaterials