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研究生:郭孟奇
研究生(外文):Meng-ChiGuo
論文名稱:單光子的量子儲存
論文名稱(外文):Quantum Storage of Single Photons
指導教授:陳泳帆
指導教授(外文):Yong-Fan Chen
學位類別:碩士
校院名稱:國立成功大學
系所名稱:物理學系碩博士班
學門:自然科學學門
學類:物理學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:48
中文關鍵詞:單光子量子儲存
外文關鍵詞:Single PhotonQuantum Storage
相關次數:
  • 被引用被引用:0
  • 點閱點閱:158
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  • 下載下載:16
  • 收藏至我的研究室書目清單書目收藏:0
本論文在冷銣原子系統中,實現基於電磁波引發透明的單光子儲存。我們建立一暗區自發力光井,可捕捉約2 × 108 顆冷銣原子,其光學密度可達20。在光儲存實驗中,我們將探測光與耦合光的夾角縮小至0.3度,並且將原子居量準備於單一賽曼態(Zeeman State)中,可使此量子記憶體的儲存時間達0.14 ms。
We demonstrated electromagnetically-induced-transparency-based light storage at the single-photon level using cold 87Rb atoms. Around 2 × 108 cold atoms with an optical depth of 20 were trapped in a dark spontaneous-force optical trap. The storage time was improved to 0.14 ms by reducing the angle between probe laser and coupling laser to 0.3 degree and preparing the atoms into a single Zeeman state .
第一章 緒論 1
1.1雷射冷卻........................................................ 1
1.2 電磁波引發透明.................................................. 1
1.3 慢光與光儲存.................................................... 5

第二章 實驗系統 9
2.1 冷原子系統 ..................................................... 9
2.1.1磁光陷阱 ...................................................... 9
2.1.2 暗區自發力光井 .............................................. 12
2.2 雷射系統....................................................... 14
2.2.1 探測雷射..................................................... 14
2.2.2 耦合雷射..................................................... 14
2.2.3 幫浦雷射..................................................... 14
2.3 光偵測系統..................................................... 16

第三章 電磁波引發透明實驗 17
3.1 EIT光譜....................................................... 18
3.2 慢光與光儲存................................................... 20

第四章 單光子的量子儲存 33
4.1 實驗準備....................................................... 33
4.2 單光子的量子儲存............................................... 36

第五章 結論與展望 42

參考文獻 43
附錄A 光子偵測器 45
附錄B EIT光譜技術 47

[1] Steven Chu, L. Hollberg, J. E. Bjorkholm, Alex Cable, and A. Ashkin “Three-dimensional viscous confinement and cooling of atoms by resonance radiation pressure. Phys. Rev. Lett. 55, 48–51 (1985)

[2] Steven Chu, J. E. Bjorkholm, A. Ashkin, and A. Cable “Experimental Observation of Optically Trapped Atoms Phys. Rev. Lett. 57, 314–317 (1986)

[3] K.-J. Boller, A. Imamolu, and S. E. Harris “Observation of electromagnetically induced transparency Phys. Rev. Lett. 66, 2593–2596 (1991)

[4] Hao-Chung Chen “Theoretical Study of Nonlinear Optics by Quantum Interference Master Thesis ,NCKU (2011)

[5] Lene Vestergaard Hau S. E. Harris, Zachary Dutton & Cyrus H. Behroozi
“Light speed reduction to 17 metres per second in an ultracold atomic gas
Nature 397, 594-598 (18 February 1999)

[6] Daniel Adam Steck, “Rubidium 87 D Line Data, Available online at http://steck.us/alkalidata/

[7] Wolfgang Ketterle, Kendall B. Davis, Michael A. Joffe, Alex Martin, and David E. Pritchard ,High densities of cold atoms in a dark spontaneous-force optical trap Phys. Rev. Lett. 70, 2253–2256 (1993)

[8] Yen-Chung ChenFour-wave Mixing Using Quantum Interference in Cold Atoms, Master Thesis,NCKU (2011)

[9] Jun-Xian Chen ,“Generantion of Polarization-entangled Photons Using Four-wave Mixing in Cold Atoms, Master Thesis ,NCKU (2011)

[10] Thorsten Peters, Yi-Hsin Chen, Jian-Siung Wang, Yen-wei, and Ite A. Yu “Optimizing the retrieval efficiency of stored light pulses, Opt. Express 17, 6665 (2009)

[11] M. Fleischhauer and M. D. Lukin ,Dark-State Polaritons in Electromagnetically Induced Transparency, Phys. Rev. Lett. 84, 5094–5097 (2000)

[12] C. Liu, Z. Dutton, C. H. Behroozi, and L. V. Hau,“Observation of coherent optical information storage in an atomic medium using halted light pulses, Nature 409, 490 (2001)

[13] Y. F. Chen, Y. C. Liu, Z. H. Tsai, S. H. Wang, and I. A. Yu, “Beat-note interferometer for direct phase measurement of photonic information, Phys. Rev.A 72, 033812 (2005).

[14] Y. F. Chen, S. H. Wang, C. Y. Wang, and I. A. Yu,“Manipulating the retrieved width of stored lightpulses, Phys. Rev. A 72, 053803 (2005).

[15] Y. F. Chen, P. C. Kuan, S. H. Wang, C. Y. Wang,and I. A. Yu, “Manipulating the retrieved frequency and polarization of stored light pulses,Opt. Lett. 31, 3511 (2006).

[16] G. Nikoghosyan “Storage and perpendicular retrieving of light pulses in electromagnetically induced transparency media Eur. Phys. J. D, 36, 119(2005)

[17] J. S.Bell, “On the Einstein-Podolsky-Rosen paradox. Physics 1, 195-200 (1964)

[18] C. H. Bennett et al. “Teleporting an unknown quantum state via dual classic and Einstein-Podolsky-Rosen channels. Phys. Rev.Lett. 70, 1895-1899 (1993).

[19] C. H.Bennett, “Quantum information and computation. Phys. Today 48(10), 24-30, October (1995).

[20] D. Gottesmanand I. L.Chuang, “Demonstrating the viability of universal quantum computation usingteleportation and single-qubit operations. Nature 402, 390-393 (1999).

[21] P. G. Kwiat et al., “New high intensity source of polarization-entangled photon pairs. Phys. Rev. Lett. 75, 4337-4341 (1995).

[22] Hung-Ju Ho, Setup and Optimization of Dark Spontaneous-force Optical Trap, , Master Thesis ,NCKU (2011)

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