Quantum state transfer between distant nodes of a quantum network via adiabatic passage

Received 6 March 2009; published 29 April 2009A scheme is presented to realize transfer of a three-dimensional quantum state between two atoms trappedin distant cavities connected by an optical fiber, whose mode is resonant with the polarization cavity modes.Performing an adiabatic passage along dark states, the fiber mode remains in the vacuum state and thepopulation of the cavities being excited can be negligible under certain conditions. In addition, atomic transi-tions in our scheme are largely detuned from cavity modes. As a consequence, the atomic spontaneousemission and the fiber decay can be effectively eliminated. Furthermore, we give some discussions about thefidelity of our scheme.DOI: 10.1103/PhysRevA.79.044304 PACS number s : 03.67.Hk, 42.50.Ex, 42.81.Qb