Vacuum Rabi oscillations in a macroscopic superconducting qubit LC oscillator system
Superconductivity
2009-11-11 v1 Mesoscale and Nanoscale Physics
Abstract
We have observed the coherent exchange of a single energy quantum between a flux qubit and a superconducting LC circuit acting as a quantum harmonic oscillator. The exchange of an energy quantum is known as the vacuum Rabi oscillations: the qubit is oscillating between the excited state and the ground state and the oscillator between the vacuum state and the first excited state. We have also obtained evidence of level quantization of the LC circuit by observing the change in the oscillation frequency when the LC circuit was not initially in the vacuum state.
Keywords
Cite
@article{arxiv.cond-mat/0510457,
title = {Vacuum Rabi oscillations in a macroscopic superconducting qubit LC oscillator system},
author = {J. Johansson and S. Saito and T. Meno and H. Nakano and M. Ueda and K. Semba and H. Takayanagi},
journal= {arXiv preprint arXiv:cond-mat/0510457},
year = {2009}
}
Comments
Submitted to Phys. Rev. Lett