Measuring Non-Markovianity of Noise in the Cenrtal Spin System
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Date
2019-05-24
Authors
Chen, Jiahui
Journal Title
Journal ISSN
Volume Title
Publisher
University of Waterloo
Abstract
In this thesis, we explore non-Markovian noise in the central spin system due to the
coupling between the central spin and the environment. We use a solid state nuclear
magnetic resonance system to do the experiment since we have control over both the central
spin and environment. In particular, we can manipulate the interaction between the central
spin and the environment and the interaction between spins from the environment to study
their effects individually. A powder of triphenylphosphine is used in the experiment. A
change of local field seen by the central spin caused by interaction between spins in the
environment is measured experimentally. A quantitative measure of non-Markovianity of
noise on the central spin and a method to estimate non-Markovianity using the randomized
benchmarking protocol are introduced.
Description
Keywords
quantum computing, central spin, randomized benchmarking, non-Markovian noise, nuclear magnetic resonace