2 papers
quant-ph2019
Superconducting circuit protected by two-Cooper-pair tunneling
W. C. Smith, A. Kou, X. Xiao +2
We present a protected superconducting qubit based on an effective circuit element that only allows pairs of Cooper pairs to tunnel. These dynamics give rise to a nearly degenerate…
quant-ph2016
Vacuum Rabi Splitting in Nanomechanical QED System with Nonlinear Resonator
M. Y. Zhao, S. M. Yu, X. Xiao +1
Considering the intrinsic nonlinearity in a nanomechanical resonator coupled to a charge qubit, vacuum Rabi splitting effect is studied in a nanomechanical QED (qubit-resonator) sy…