LEADER 04120nam 22006855 450 001 9910254608903321 005 20200706015315.0 010 $a3-319-26548-2 024 7 $a10.1007/978-3-319-26548-3 035 $a(CKB)3710000000515651 035 $a(EBL)4093074 035 $a(SSID)ssj0001584989 035 $a(PQKBManifestationID)16264680 035 $a(PQKBTitleCode)TC0001584989 035 $a(PQKBWorkID)14864798 035 $a(PQKB)11081266 035 $a(DE-He213)978-3-319-26548-3 035 $a(MiAaPQ)EBC4093074 035 $a(PPN)190537272 035 $a(EXLCZ)993710000000515651 100 $a20151114d2016 u| 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 12$aA Controlled Phase Gate Between a Single Atom and an Optical Photon /$fby Andreas Reiserer 205 $a1st ed. 2016. 210 1$aCham :$cSpringer International Publishing :$cImprint: Springer,$d2016. 215 $a1 online resource (83 p.) 225 1 $aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053 300 $a"Doctoral Thesis accepted by the Max-Planck-Institut fu?r Quantenoptik, Germany"--Title page. 311 $a3-319-26546-6 320 $aIncludes bibliographical references at the end of each chapters. 327 $aIntroduction -- 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. 330 $aThis thesis reports on major steps towards the realization of scalable quantum networks. It addresses the experimental implementation of a deterministic interaction mechanism between flying optical photons and a single trapped atom. In particular, it demonstrates the nondestructive detection of an optical photon. To this end, single rubidium atoms are trapped in a three-dimensional optical lattice at the center of an optical cavity in the strong coupling regime. Full control over the atomic state ? its position, its motion, and its electronic state ? is achieved with laser beams applied along the resonator and from the side. When faint laser pulses are reflected from the resonator, the combined atom-photon state acquires a state-dependent phase shift. In a first series of experiments, this is employed to nondestructively detect optical photons by measuring the atomic state after the reflection process. Then, quantum bits are encoded in the polarization of the laser pulse and in the Zeeman state of the atom. The state-dependent phase shift mediates a deterministic universal quantum gate between the atom and one or two successively reflected photons, which is used to generate entangled atom-photon, atom-photon-photon, and photon-photon states out of separable input states. 410 0$aSpringer Theses, Recognizing Outstanding Ph.D. Research,$x2190-5053 606 $aQuantum computers 606 $aSpintronics 606 $aQuantum optics 606 $aQuantum theory 606 $aQuantum Information Technology, Spintronics$3https://scigraph.springernature.com/ontologies/product-market-codes/P31070 606 $aQuantum Optics$3https://scigraph.springernature.com/ontologies/product-market-codes/P24050 606 $aQuantum Physics$3https://scigraph.springernature.com/ontologies/product-market-codes/P19080 615 0$aQuantum computers. 615 0$aSpintronics. 615 0$aQuantum optics. 615 0$aQuantum theory. 615 14$aQuantum Information Technology, Spintronics. 615 24$aQuantum Optics. 615 24$aQuantum Physics. 676 $a530.12 700 $aReiserer$b Andreas$4aut$4http://id.loc.gov/vocabulary/relators/aut$0799806 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910254608903321 996 $aA Controlled Phase Gate Between a Single Atom and an Optical Photon$92522515 997 $aUNINA