title: Theory of control of the spin-photon interface for quantum networks.
abstract: A cavity coupling, a charged nanodot, and a fiber can act as a quantum interface, through which a stationary spin qubit and a flying photon qubit can be interconverted via a cavity-assisted Raman process. This Raman process can be made to generate or annihilate an arbitrarily shaped single-photon wave packet by pulse shaping the controlling laser field. This quantum interface forms the basis for many essential functions of a quantum network, including sending, receiving, transferring, swapping, and entangling qubits at distributed quantum nodes as well as a deterministic source and an efficient detector of a single-photon wave packet with arbitrarily specified shape and average photon number. Numerical study of errors from noise and system parameters on the operations shows high fidelity and robust tolerance.
authors.affiliation: Department of Physics, University of California-San Diego, La Jolla, CA 92093-0319, USA.
authors.forename: Wang
authors.initials: W
authors.lastname: Yao
authors.forename: Ren-Bao
authors.initials: RB
authors.lastname: Liu
authors.forename: L J
authors.initials: LJ
authors.lastname: Sham