A Controlled Phase Gate Between a Single Atom and an Optical - download pdf or read online

By Andreas Reiserer

This thesis studies on significant steps in the direction of the belief of scalable quantum networks. It addresses the experimental implementation of a deterministic interplay mechanism among flying optical photons and a unmarried trapped atom. particularly, it demonstrates the nondestructive detection of an optical photon. To this finish, unmarried rubidium atoms are trapped in a third-dimensional optical lattice on the middle of an optical hollow space within the robust coupling regime. complete keep watch over over the atomic nation — its place, its movement, and its digital country — is accomplished with laser beams utilized alongside the resonator and from the facet. whilst faint laser pulses are mirrored from the resonator, the mixed atom-photon country acquires a state-dependent part shift. In a primary sequence of experiments, this is often hired to nondestructively discover optical photons by way of measuring the atomic nation after the mirrored image technique. Then, quantum bits are encoded within the polarization of the laser pulse and within the Zeeman nation of the atom. The state-dependent part shift mediates a deterministic common quantum gate among the atom and one or successively mirrored photons, that's used to generate entangled atom-photon, atom-photon-photon, and photon-photon states out of separable enter states.

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A Controlled Phase Gate Between a Single Atom and an Optical Photon (Springer Theses) by Andreas Reiserer

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