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• W1569151223 abstract "While quantum information processing offers a tantalizing possibility of a significant speedup in execution of certain algorithms, as well as enabling previously unmanageable simulations of large quantum systems, it remains extremely difficult to realize experimentally. Recently, fundamental building blocks of a quantum computer, including one and two qubit gates, teleportation and error correction, were demonstrated using trapped atomic ions. Scaling to a larger number of qubits requires miniaturization of the ion traps, currently limited by the sharply increasing motional state decoherence at sub-100 μm ion-electrode distances. This thesis explores the source and suppression of this decoherence at cryogenic temperatures, and demonstrates fundamental logic gates in a surface electrode ion trap. Construction of the apparatus requires the development of a number of experimental techniques. Design, numerical simulation and implementation of a surface electrode ion trap is presented. Cryogenic cooling of the trap to near 4 K is accomplished by contact with a bath cryostat. Ions are loaded by ablation or photoionization, both of which are characterized in terms of generated stray fields and heat load. The bulk of new experimental results deals with measurements of electric field noise at the ion's position. Upon cooling to 6 K, the measured rates are suppressed by up to 7 orders of magnitude, more than two orders of magnitude below previously published data for similarly sized traps operated at room temperature. The observed noise depends strongly on fabrication process, which suggests further improvements are possible. The measured dependence of the electric field noise on temperature is inconsistent with published models, and can be explained using a continuous spectrum of activated fluctuators. The fabricated surface electrode traps are used to demonstrate coherent operations and the classical control required for trapped ion quantum computation. The necessary spectral properties of coherent light sources are achieved with a novel design using optical feedback to a triangular, medium finesse, cavity, followed by electronic feedback to an ultra-high finesse reference cavity. Single and two qubit operations on a single ion are demonstrated with classical fidelity in excess of 95%. Magnetic field gradient coils built into the trap allow for individual addressing of ions, a prerequisite to scaling to multiple qubits. (Copies available exclusively from MIT Libraries, Rm. 14-0551, Cambridge, MA 02139-4307. Ph. 617-253-5668; Fax 617-253-1690.)" @default.
• W1569151223 created "2016-06-24" @default.
• W1569151223 creator A5054161238 @default.
• W1569151223 creator A5057563879 @default.
• W1569151223 date "2008-01-01" @default.
• W1569151223 modified "2023-09-23" @default.
• W1569151223 title "High fidelity quantum gates with ions in cryogenic microfabricated ion traps" @default.
• W1569151223 cites W1486761356 @default.
• W1569151223 cites W1509182036 @default.
• W1569151223 cites W1544631271 @default.
• W1569151223 cites W1613274888 @default.
• W1569151223 cites W1620719297 @default.
• W1569151223 cites W1631356911 @default.
• W1569151223 cites W163153388 @default.
• W1569151223 cites W1784120331 @default.
• W1569151223 cites W1835119121 @default.
• W1569151223 cites W1964347990 @default.
• W1569151223 cites W1966533239 @default.
• W1569151223 cites W1967495744 @default.
• W1569151223 cites W1968334148 @default.
• W1569151223 cites W1969305455 @default.
• W1569151223 cites W1969546033 @default.
• W1569151223 cites W1970138328 @default.
• W1569151223 cites W1971657919 @default.
• W1569151223 cites W1973676398 @default.
• W1569151223 cites W1976340511 @default.
• W1569151223 cites W1979119138 @default.
• W1569151223 cites W1979357835 @default.
• W1569151223 cites W1983704085 @default.
• W1569151223 cites W1984081987 @default.
• W1569151223 cites W1986471717 @default.
• W1569151223 cites W1988105492 @default.
• W1569151223 cites W1989221171 @default.
• W1569151223 cites W1989598704 @default.
• W1569151223 cites W1991571364 @default.
• W1569151223 cites W1991582728 @default.
• W1569151223 cites W1992295235 @default.
• W1569151223 cites W1992551881 @default.
• W1569151223 cites W1997269293 @default.
• W1569151223 cites W1997745774 @default.
• W1569151223 cites W1997916315 @default.
• W1569151223 cites W1999223348 @default.
• W1569151223 cites W1999971683 @default.
• W1569151223 cites W2000900144 @default.
• W1569151223 cites W2001403108 @default.
• W1569151223 cites W2001688573 @default.
• W1569151223 cites W2002060796 @default.
• W1569151223 cites W2002719646 @default.
• W1569151223 cites W2006743083 @default.
• W1569151223 cites W2006785999 @default.
• W1569151223 cites W2008226021 @default.
• W1569151223 cites W2008336411 @default.
• W1569151223 cites W2008456265 @default.
• W1569151223 cites W2010170553 @default.
• W1569151223 cites W2011088907 @default.
• W1569151223 cites W2014136686 @default.
• W1569151223 cites W2014426329 @default.
• W1569151223 cites W2016005409 @default.
• W1569151223 cites W2017293193 @default.
• W1569151223 cites W2018098207 @default.
• W1569151223 cites W2018347769 @default.
• W1569151223 cites W2019024432 @default.
• W1569151223 cites W2020409647 @default.
• W1569151223 cites W2020703178 @default.
• W1569151223 cites W2022177296 @default.
• W1569151223 cites W2022191417 @default.
• W1569151223 cites W2022707608 @default.
• W1569151223 cites W2023142346 @default.
• W1569151223 cites W2025282792 @default.
• W1569151223 cites W2026920019 @default.
• W1569151223 cites W2028190807 @default.
• W1569151223 cites W2031888695 @default.
• W1569151223 cites W2032282864 @default.
• W1569151223 cites W2032609902 @default.
• W1569151223 cites W2032719258 @default.
• W1569151223 cites W2033568189 @default.
• W1569151223 cites W2036916586 @default.
• W1569151223 cites W2037232648 @default.
• W1569151223 cites W2037347712 @default.
• W1569151223 cites W2040136860 @default.
• W1569151223 cites W2040983551 @default.
• W1569151223 cites W2042426892 @default.
• W1569151223 cites W2042474962 @default.
• W1569151223 cites W2043411783 @default.
• W1569151223 cites W2044185329 @default.
• W1569151223 cites W2046669387 @default.
• W1569151223 cites W2047166938 @default.
• W1569151223 cites W2047606184 @default.
• W1569151223 cites W2049927917 @default.
• W1569151223 cites W2051465280 @default.
• W1569151223 cites W2051580613 @default.
• W1569151223 cites W2055086119 @default.
• W1569151223 cites W2055502035 @default.
• W1569151223 cites W2055591610 @default.
• W1569151223 cites W2057821578 @default.
• W1569151223 cites W2060520763 @default.
• W1569151223 cites W2062738146 @default.
• W1569151223 cites W2063937330 @default.
• W1569151223 cites W2066911071 @default.
• W1569151223 cites W2067763535 @default.

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