04120nam 22006855 450 991025460890332120200706015315.03-319-26548-210.1007/978-3-319-26548-3(CKB)3710000000515651(EBL)4093074(SSID)ssj0001584989(PQKBManifestationID)16264680(PQKBTitleCode)TC0001584989(PQKBWorkID)14864798(PQKB)11081266(DE-He213)978-3-319-26548-3(MiAaPQ)EBC4093074(PPN)190537272(EXLCZ)99371000000051565120151114d2016 u| 0engur|n|---|||||txtccrA Controlled Phase Gate Between a Single Atom and an Optical Photon /by Andreas Reiserer1st ed. 2016.Cham :Springer International Publishing :Imprint: Springer,2016.1 online resource (83 p.)Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053"Doctoral Thesis accepted by the Max-Planck-Institut für Quantenoptik, Germany"--Title page.3-319-26546-6 Includes bibliographical references at the end of each chapters.Introduction -- Controlling the Position and Motion of a Single Atom in an Optical Cavity -- Measurement and Control of the Internal Atomic State -- Controlled Phase Gate Mechanism -- Nondestructive Detection of an Optical Photon -- A Quantum Gate Between a Flying Optical Photon and a Single Trapped Atom -- Summary and Outlook.This thesis reports on major steps towards the realization of scalable quantum networks. It addresses the experimental implementation of a deterministic interaction mechanism between flying optical photons and a single trapped atom. In particular, it demonstrates the nondestructive detection of an optical photon. To this end, single rubidium atoms are trapped in a three-dimensional optical lattice at the center of an optical cavity in the strong coupling regime. Full control over the atomic state — its position, its motion, and its electronic state — is achieved with laser beams applied along the resonator and from the side. When faint laser pulses are reflected from the resonator, the combined atom-photon state acquires a state-dependent phase shift. In a first series of experiments, this is employed to nondestructively detect optical photons by measuring the atomic state after the reflection process. Then, quantum bits are encoded in the polarization of the laser pulse and in the Zeeman state of the atom. The state-dependent phase shift mediates a deterministic universal quantum gate between the atom and one or two successively reflected photons, which is used to generate entangled atom-photon, atom-photon-photon, and photon-photon states out of separable input states.Springer Theses, Recognizing Outstanding Ph.D. Research,2190-5053Quantum computersSpintronicsQuantum opticsQuantum theoryQuantum Information Technology, Spintronicshttps://scigraph.springernature.com/ontologies/product-market-codes/P31070Quantum Opticshttps://scigraph.springernature.com/ontologies/product-market-codes/P24050Quantum Physicshttps://scigraph.springernature.com/ontologies/product-market-codes/P19080Quantum computers.Spintronics.Quantum optics.Quantum theory.Quantum Information Technology, Spintronics.Quantum Optics.Quantum Physics.530.12Reiserer Andreasauthttp://id.loc.gov/vocabulary/relators/aut799806MiAaPQMiAaPQMiAaPQBOOK9910254608903321A Controlled Phase Gate Between a Single Atom and an Optical Photon2522515UNINA