Read e-book online A Controlled Phase Gate Between a Single Atom and an Optical PDF

By Andreas Reiserer

This thesis reviews on significant steps in the direction of the conclusion 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 country — its place, its movement, and its digital country — is completed with laser beams utilized alongside the resonator and from the aspect. while 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 can be hired to nondestructively observe optical photons by way of measuring the atomic nation after the mirrored image method. Then, quantum bits are encoded within the polarization of the laser pulse and within the Zeeman kingdom of the atom. The state-dependent section shift mediates a deterministic common quantum gate among the atom and one or successively mirrored photons, that is 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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