1304.3697 (A. Wallraff et al.)

Comment on `Vacuum Rabi Splitting in a Semiconductor Circuit QED System'
by Toida et al., Phys. Rev. Lett. 110, 066802 - Published 6 February 2013    [PDF]

A. Wallraff, A. Stockklauser, T. Ihn, J. R. Petta, A. Blais

Toida et al. claim in their recent article [Phys. Rev. Lett. 110, 066802 (2013)] that they `report a direct observation of vacuum Rabi splitting in a GaAs/AlGaAs double quantum dot (DQD) based charge qubit coupled with a superconducting coplanar waveguide (CPW) resonator'. In this comment, we challenge the main claims made in their paper and show that their results: a) do not provide any evidence of vacuum Rabi oscillations and b) do not provide any direct evidence of vacuum Rabi splitting.

View original: http://arxiv.org/abs/1304.3697