Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/122337
Title: CONTROL OF TRAPPED-ION MOTION FOR MOLECULAR SPECTROSCOPY AND QUANTUM INFORMATION PROCESSING
Authors: DING SHIQIAN
Keywords: quantum logic, molecular ions, frequency comb, microwave sideband cooling, quantum parametric oscillator, Wigner function
Issue Date: 30-Sep-2015
Source: DING SHIQIAN (2015-09-30). CONTROL OF TRAPPED-ION MOTION FOR MOLECULAR SPECTROSCOPY AND QUANTUM INFORMATION PROCESSING. ScholarBank@NUS Repository.
Abstract: Control and manipulation of trapped-ion motion are basic building blocks for quantum information processing and precision measurement with trapped ions. First, I present a proposal to prepare, detect and manipulate the state of a molecular ion using quantum logic techniques, and its experimental validation in a proof-of-principle experiment with two different isotopes of Yb. I also describe our experiment to control the motion of a trapped atomic ion using microwave radiation assisted by a running optical lattice. The spin-motion coupling is exploited to demonstrate sideband cooling to the ground state of motion. Finally, I discuss the coupling between two normal modes of a two-ion crystal that is formally analogous to the process of the optical down-conversion. It is exploited to demonstrate phonon down-conversion (up-conversion) at the single quanta level. This coupling allows us to directly measure the parity and Wigner function of the ions? motional state.
URI: http://scholarbank.nus.edu.sg/handle/10635/122337
Appears in Collections:Ph.D Theses (Open)

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