Quantum process tomography with arbitrary number of ancilla in nuclear magnetic resonance = 핵자기공명에서 임의의 수의 보조 큐빗을 이용한 양자 조작의 정량적 분석

The purpose of quantum process tomography is to make a robust quantum computation. For the achievement of this aim, it is necessary to estimate an experimental quantum process and compare it with an ideal unitary operation quantitatively. We propose a scheme for quantum process tomography with arbitrary number of ancilla. In this scheme, $2^{2(n-m)}$ experiments are required for n qubits process tomography with m ancilla. Thus, for implementing controlled-NOT gate using two qubits and one ancilla, four experiments are required. We can gain the advantage that the optimal number of experiments and ancilla can be employed for process tomography. In addition, with entangled initial states, our experiment implemented in nuclear magnetic resonance shows an example in the quantum parallelism of entanglement.
Advisors
Lee, Soon-Chilresearcher이순칠researcher
Publisher
한국과학기술원
Issue Date
2005
Identifier
243491/325007  / 020033055
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 물리학과, 2005.2, [ vi, 71 p. ]

Keywords

Controlled-NOT operation; Nuclear Magnetic Resonance; Quantum Process Tomography; Ancilla; 보조큐빗; Controlled-NOT 연산; 핵자기공명; 양자조작의 정량적 분석

URI
http://hdl.handle.net/10203/48683
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=243491&flag=t
Appears in Collection
PH-Theses_Master(석사논문)
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