Impedance measurement technique for quantum systems
arXiv:0708.0464 · doi:10.1140/epjb/e2008-00061-9
Abstract
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.
5 pages
References in corpus (12)
- Evidence for entangled states of two coupled flux qubits
- Nondestructive readout for a superconducting flux qubit
- Low-frequency measurement of the tunneling amplitude in a flux qubit
- Low-frequency characterization of quantum tunneling in flux qubits
- Cooper-pair qubit and Cooper-pair electrometer in one device
- Radio-Frequency Method for Investigation of Quantum Properties of Superconducting Structures
- Multiphoton transitions between energy levels in a phase-biased Cooper-pair box
- Theory of weak continuous measurements in a strongly driven quantum bit
- Method for direct observation of coherent quantum oscillations in a superconducting phase qubit
- Flux qubit as a sensor for a magnetometer with quantum limited sensitivity
- Bloch inductance in small-capacitance Josephson junctions
- Energy Down Conversion between Classical Electromagnetic Fields via a Quantum Mechanical SQUID Ring
Cited by in corpus (10)
- Nonadiabatic Landau-Zener-Stückelberg-Majorana transitions, dynamics, and interference
- Consistency of ground state and spectroscopic measurements on flux qubits
- Gate-sensing coherent charge oscillations in a silicon field-effect transistor
- Inverse Landau-Zener-Stuckelberg problem for qubit-resonator systems
- Multiphoton transitions in Josephson-junction qubits (Review Article)
- Resonant excitations of single and two-qubit systems coupled to a tank circuit
- Multiphoton excitations and inverse population in two-flux-qubit system
- Low-temperature tunable radio-frequency resonator for sensitive dispersive readout of nanoelectronic devices
- Current-Phase Relation and Josephson Inductance of Superconducting Cooper Pair Transistor
- Magnetic flux noise in the three Josephson junctions superconducting ring