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Quantum detector tomography of superconducting detector arrays / by Timon Schapeler ; submitted to Jun.-Prof. Dr. Tim J. Bartley and Prof. Dr. Torsten Meier. Paderborn, 2020
Inhalt
Introduction
Background
Superconducting Nanowire Single-Photon Detector
General Introduction
Operating Principle
Detector Characteristics
Quantum Detector Tomography
General Introduction
POVM Formalism
Photon-Number Resolving Detectors
Optimization
Theoretical POVMs
Detector Wigner Functions
Input State Calibration
Experimental Setup
Analysis
Second-Order Correlation Function
Detector Tomography: 4-Pixel Detector
Experimental Setup
Analysis
Coherent Input State Matrix
Measurement Statistics Matrix
POVM Reconstruction
Results
Reconstructed POVM Elements
Efficiency
Dark-Count Probability
Cross-Talk Probability
Detector Wigner Functions
Convergence and Sanity Check
Detector Tomography: 4-Bin Detector
Experimental Setup
Analysis
Coherent Input State Matrix
Measurement Statistics Matrix
POVM Reconstruction
Results
Scalability of Detector Tomography
Introduction: Loop-Detector Design
Simulation
Matrix-Construction
POVM Reconstruction
Experiment
Experimental Setup
Analysis
Results
Conclusion and Outlook
Bibliography
Appendix
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