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DTSTART:20230312T070000
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URL:/institute-for-quantum-computing/events/pei-jiang-l
 ow-phd-thesis-defence
SUMMARY:Pei Jiang Low PhD Thesis Defence
CLASS:PUBLIC
DESCRIPTION:Summary \n\nCONTROL AND READOUT OF HIGH-DIMENSIONAL TRAPPED ION
  QUDITS\n\nThe trapped ion platform is one of the quantum computing platfo
 rms\nthat is at the forefront for realizing large-scale quantum informatio
 n\nprocessing\, which is crucial for practically actualizing the\nadvantag
 es of quantum algorithms. Scaling up the trapped ion quantum\ncomputing ar
 chitecture remains a challenge. We explore an alternative\navenue in a tra
 pped ion system for increasing the computational\nHilbert space other than
  trapping more ions\, which is by increasing\nthe qudit dimension of an io
 n. Our ion of choice is 137Ba+\, which has\na rich energy level structure 
 for high-dimensional qudit encoding.\nUtilizing the additional energy stat
 es found in 137Ba+ also comes with\nnon-trivial complexities that require 
 careful considerations\, which we\nhave solved and report in this work. We
  report on a single-shot state\nmeasurement protocol which allows qudit en
 coding in 137Ba+ of up to 25\nlevels\, and demonstrate state preparation a
 nd measurement of up to 13\nlevels\, which is unprecedented in a trapped i
 on system. This PhD\ndefense presentation also covers some other interesti
 ng topics within\nthe thesis\, which include our experimental setup\, bari
 um ion loading\nvia laser ablation\, and detailed studies of some experime
 ntal\nobservations that may not be intuitively clear.\n 
DTSTAMP:20250518T043224Z
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