2005/07/31 by Ya. S. Greenberg, Ya. S Greenberg, E. Il'ichev +3 · 23 citations
Physics and Astronomy · #Amplitude #Dissipative system #Flux qubit #Quantum and electron transport phenomena #Quantum chaos and dynamical systems #Quantum optics and atomic interactions #Qubit #Rabi cycle #Rabi frequency #Spectroscopy #Spins #cond-mat.mes-hall #cond-mat.mtrl-sci
paper · pdf · doi:10.1209/epl/i2005-10320-y
published in Europhysics Letters (EPL) 72(6), 880-886 (Institute of Physics) · 4 pages, 3 figures, the figures are modified
openalex publication_date 2005/11/08 · arxiv created 2005/12/03 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We have analyzed the interaction of a dissipative two-level quantum system with high- and low-frequency excitation. The system is continuously and simultaneously irradiated by these two waves. If the frequency of the first signal is close to the level separation, the response of the system exhibits undamped low-frequency oscillations whose amplitude has a clear resonance at the Rabi frequency with the width being dependent on the damping rates of the system. The method can be useful for low-frequency Rabi spectroscopy in various physical systems which are described by a two-level Hamiltonian, such as nuclei spins in NMR, double-well quantum dots, superconducting flux and charge qubits, etc. As examples, the application of the method to a nuclear spin and to the readout of a flux qubit are briefly discussed.