Name of the Journal:
Phys. Rev. Lett.
Date of Pub:
July 30, 2007
Year of Publication:
2007
Volume:
99
Issue:
5
Pages:
050501
Publisher Name, Address and Year:
American Physical Society
Abstract:
Sideband transitions are spectroscopically probed in a system consisting of a Cooper pair box strongly but nonresonantly coupled to a superconducting transmission line resonator. When the Cooper pair box is operated at the optimal charge bias point, the symmetry of the Hamiltonian requires a two-photon process to access sidebands. The observed large dispersive ac-Stark shifts in the sideband transitions induced by the strong nonresonant drives agree well with our theoretical predictions. Sideband transitions are important in realizing qubit-photon and qubit-qubit entanglement in the circuit quantum electrodynamics architecture for quantum information processing.
DOI Link:
arXiv.org Number: