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Nuclear Magnetic Resonance Implementation of Two Precision Quantum Measurement Algorithm

Author: LiuXiuMei
Tutor: LuoJun
School: Wuhan Institute of Physics and Institute of Mathematics
Course: Atomic and Molecular Physics
Keywords: NMR quantum computing Quantum feedback Quantum phase estimation algorithm Precision measurement
CLC: O413.1
Type: Master's thesis
Year: 2007
Downloads: 89
Quote: 0
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Quantum information science is a new interdisciplinary combine quantum mechanics and information science , and many other kinds of subjects . It includes the field of quantum communication and quantum computing , it may provide for the development of information science principles and methods . Quantum information processing in some ways theoretically can break through the limitations of classical information processing , the great scientific significance and academic value attracting growing interest for physicists and information scientists , is currently in the forefront of science and one of the hot research field . People have experimentally demonstrated quantum logic gate operation and simple quantum algorithms . Construct scalable quantum computer is very difficult , and one of its greatest difficulty is extended to a multi- quantum bit . Experiments show that the liquid state nuclear magnetic resonance (NMR) quantum computing is one of the fastest growing and reality This article liquid NMR quantum computer as a means to demonstrate quantum precision measurement of two algorithms , mainly to complete the following tasks : 1 , the first time through the feedback control in the two -qubit NMR computer demonstration phase estimation algorithm , phase estimation accurate to one decimal 20 ( binary ) , and analysis of the error , and the theoretical results are consistent for feedback control phase estimation quantum algorithm provides a typical example , opening up prospects for future applications to achieve a number of quantum precision measurement algorithm in a small number of quantum bits computer . 2 , by \It can be applied to the NMR system or other system to achieve precise coherent control of the quantum states . In summary, this study of quantum information processing in few qubit quantum computer demo can be achieved only in the number of quantum computers , quantum precision measurement algorithms provide some of the principles of experimental evidence , I believe that with the study of the principles and experimental techniques the deepening of quantum information processing will be more important in precision measurement and control applications .

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CLC: > Mathematical sciences and chemical > Physics > Theoretical Physics > Quantum theory > Quantum mechanics ( wave mechanics,matrix mechanics )
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