Applied Research Of Quantum Information Based On Linear Optics (springer Theses)
by Xiaoye Xu /
2016 / English / PDF
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This thesis reports on outstanding work in two main subfields of
quantum information science: one involves the quantum measurement
problem, and the other concerns quantum simulation. The thesis
proposes using a polarization-based displaced Sagnac-type
interferometer to achieve partial collapse measurement and its
reversal, and presents the first experimental verification of the
nonlocality of the partial collapse measurement and its reversal.
All of the experiments are carried out in the linear optical
system, one of the earliest experimental systems to employ
quantum communication and quantum information processing. The
thesis argues that quantum measurement can yield quantum
entanglement recovery, which is demonstrated by using the
frequency freedom to simulate the environment. Based on the weak
measurement theory, the author proposes that white light can be
used to precisely estimate phase, and effectively demonstrates
that the imaginary part of the weak value can be introduced by
means of weak measurement evolution. Lastly, a nine-order
polarization-based displaced Sagnac-type interferometer employing
bulk optics is constructed to perform quantum simulation of the
Landau-Zener evolution, and by tuning the system Hamiltonian, the
first experiment to research the Kibble-Zurek mechanism in
non-equilibrium kinetics processes is carried out in the linear
optical system.
This thesis reports on outstanding work in two main subfields of
quantum information science: one involves the quantum measurement
problem, and the other concerns quantum simulation. The thesis
proposes using a polarization-based displaced Sagnac-type
interferometer to achieve partial collapse measurement and its
reversal, and presents the first experimental verification of the
nonlocality of the partial collapse measurement and its reversal.
All of the experiments are carried out in the linear optical
system, one of the earliest experimental systems to employ
quantum communication and quantum information processing. The
thesis argues that quantum measurement can yield quantum
entanglement recovery, which is demonstrated by using the
frequency freedom to simulate the environment. Based on the weak
measurement theory, the author proposes that white light can be
used to precisely estimate phase, and effectively demonstrates
that the imaginary part of the weak value can be introduced by
means of weak measurement evolution. Lastly, a nine-order
polarization-based displaced Sagnac-type interferometer employing
bulk optics is constructed to perform quantum simulation of the
Landau-Zener evolution, and by tuning the system Hamiltonian, the
first experiment to research the Kibble-Zurek mechanism in
non-equilibrium kinetics processes is carried out in the linear
optical system.