研究目的
Investigating the violation of the Bell inequality with high-dimensional two-photon orbital angular momentum entanglement using spiral phase plates.
研究成果
The theoretical demonstration shows that the overlap probability between two quantum states, each made up of n fractional orbital angular momentum states, results in n-section parabolic coincident fringes. The proposed experiment with two n-section spiral phase plates can demonstrate violations of the Bell inequality with high-dimensional two-photon entanglement, offering various angle periods of parabolic coincident fringes and a strong Bell parameter.
研究不足
The study is theoretical, and the proposed experiment's practical implementation and potential experimental challenges are not discussed.
1：Experimental Design and Method Selection:
The experiment involves using two n-section spiral phase plates (SPPn) to demonstrate parabolic coincident fringes in a Bell inequality experiment. The theoretical framework involves quantum states with rotational symmetry superposition made up of n fractional orbital angular momentum states.
2：Sample Selection and Data Sources:
The study is theoretical, focusing on the properties of quantum states and their overlap probabilities.
3：List of Experimental Equipment and Materials:
Two n-section spiral phase plates (SPPn) are proposed for the experiment.
4：Experimental Procedures and Operational Workflow:
The proposed experiment involves setting up an SPDC (spontaneous parametric down-conversion) setup with two SPPns to measure the coincidence fringe and Bell parameter.
5：Data Analysis Methods:
The overlap probability between two quantum states is calculated to predict the experimental outcomes.
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