We study adiabatic quantum teleportation through a spin chain with XX and Heisenberg couplings. We show that an adiabatic quantum teleportation protocol on a three-spin chain can be mapped exactly onto two parallel and coherent adiabatic passage channels, one for each spin orientation. When the time evolution is non-adiabatic, the information transfer displays a series of resonances where perfect transmission fidelity is achieved. This resonant operation is both fast and robust, indicating a possible new route for implementing robust quantum gates between spin qubits.
*This work was supported by the DARPA QuEST through AFOSR and NSA/LPS through ARO.
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Authors
Sangchul Oh
Department of Physics, University at Buffalo, State University of New York
Department of Physics, University at Buffalo, The State University of New York
University at Buffalo, SUNY
Yun-Pil Shim
Department of Physics, University of Wisconsin-Madison
University of Wisconsin-Madison
Mark Friesen
Department of Physics, University of Wisconsin-Madison
University of Wisconsin-Madison
Xuedong Hu
Department of Physics, University at Buffalo, SUNY
University at Buffalo, The State University of New York
Department of Physics, University at Buffalo, State University of New York
Department of Physics, University at Buffalo, The State University of New York
