以冷原子群產生雙光子之理論與實驗架設

Theory and experimental preparation of biphoton generation with atomic ensemble

楊均偉(Chun-Wei Yang)

指導教授 ： 褚志崧

國立清華大學/理學院/物理學系/碩士(2017年)

摘要

產生具有非古典性質且頻率接近原子能階躍遷之糾纏光子對是實踐長距離量子通訊中重要的一環，本論文討論在電磁波誘發透明的條件下利用冷原子群(cold atoms)藉由大角度自發四波混頻(spontaneous four-wave mixing)的機制產生光子對實驗所需之理論基礎與實驗結果

關鍵字

雙光子製備 ； 自發四波混頻 ； 冷原子群 ； 電磁波誘發透明 ； 雙光子關聯函數 ； 量子資訊 ； 量子通訊

並列摘要

Generation of entangled photon pairs with non-classical properties is an important technique to realize long distance quantum communication. This thesis discusses the basic theoretical calculation and experimental results of generation of entangled photon pairs through right-angle spontaneous four-wave mixing in cold atoms based on electromagnetically induced transparency.

並列關鍵字

biphoton generation ； spontaneous four-wave mixing ； cold atoms ； electromagnetically induced transparency ； two-photon correlation function ； quantum information ； quantum communication

參考文獻

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3. Kuzmich, A., et al., Generation of nonclassical photon pairs for scalable quantum communication with atomic ensembles. Nature, 2003. 423(6941): p. 731-734.

4. van der Wal, C.H., et al., Atomic memory for correlated photon states. Science, 2003. 301(5630): p. 196-200.

5. Braje, D.A., et al., Frequency mixing using electromagnetically induced transparency in cold atoms. Phys Rev Lett, 2004. 93(18): p. 183601.

6. Balic, V., et al., Generation of paired photons with controllable waveforms. Phys Rev Lett, 2005. 94(18): p. 183601.