Investigation of coherent microscopic defects inside the tunneling barrier of a Josephson junction

Beschreibung

In disordered solids, two-level atomic-tunneling systems are present in large quantity. Only recently, superconducting qubits opened a door for a detection and individual coherent manipulation of such microscopic quantum systems. We succeeded to tune the resonance frequencies of these systems by applying external strain on the qubit chip. Moreover, we observed and analyzed the interaction between two coupled tunneling systems.
In disordered solids, two-level atomic-tunneling systems are present in large quantity. Only recently, superconducting qubits opened a door for a detection and individual coherent manipulation of such microscopic quantum systems. We succeeded to tune the resonance frequencies of these systems by applying external strain on the qubit chip. Moreover, we observed and analyzed the interaction between two coupled tunneling systems.

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Grigorij Jur'evic Grabovskij

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Qubit phase qubit TLS Superconducting qubit tunneling system Tunnelsystem Quantum bit two-level system Quantenbit TLS TLS qubit tunneling system

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