Impedance measurement technique for quantum systems

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Authors
Shevchenko, S. N.
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Abstract
Description
The impedance measurement technique consists in that the phase-dependent (parametric) inductance of the system is probed by the classical tank circuit via measuring the voltage. The notion of the parametric inductance for the impedance measurement technique is revisited for the case when a quantum system is probed. Measurement of the quantum state of the system of superconducting circuits (qubits) is studied theoretically. It is shown that the result of the measurement is defined by the partial energy levels populations in the qubits.
Comment: 5 pages
Keywords
Condensed Matter - Superconductivity, Condensed Matter - Mesoscale and Nanoscale Physics
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