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高產率偏振糾纏光子之產生及量測
Thesis

高產率偏振糾纏光子之產生及量測

林志嘉
Masters, 國立清華大學, 物理學系
2016

Abstract

糾纏光子對 偏振糾纏 量子通訊 量子資訊 Entangled photon pair Polarization entanglement Quantum communication Quantum information
With the development of quantum mechanics, quantum information gradually became an independent subject. In this subject, photon plays a very important role; therefore, how to build a single photon source and also purity entangled bi-photon source are the core issues of the subject. We use high detected rate time-energy entangled photons to generate polarization entangled photons with high flux by photodetector post-selection. Then, it is expected to have the detection rate up to 13000(s-1/mW) which is relatively high compared with the previous work. Furthermore, we verified our polarization entangled photons possesses quantum nonlocality and steerability by calculating CHSH inequality and CHSH like steering inequality. In the end, we manipulate either the frequency or time distinguishability between a pair of the time-energy entangled photons to analyze the properties of the total wavefunction with the help of Hong-Ou-Mandel interferometer.

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