Nearly Deterministic Teleportation of a Photonic Qubit with Weak Cross-Kerr Nonlinearities
ZHOU Jian1,2, YANG Ming1, LU Yan1, CAO Zhuo-Liang 3,1
1Key Laboratory of Opto-electronic Information Acquisition and Manipulation (Ministry of Education), School of Physics and Material Science, Anhui University, Hefei 2300392Anhui Xinhua University, Hefei 2300883Department of Physics and Electronic Engineering, Hefei Teachers College, Hefei 230061
Nearly Deterministic Teleportation of a Photonic Qubit with Weak Cross-Kerr Nonlinearities
ZHOU Jian1,2, YANG Ming1, LU Yan1, CAO Zhuo-Liang 3,1
1Key Laboratory of Opto-electronic Information Acquisition and Manipulation (Ministry of Education), School of Physics and Material Science, Anhui University, Hefei 2300392Anhui Xinhua University, Hefei 2300883Department of Physics and Electronic Engineering, Hefei Teachers College, Hefei 230061
摘要Scheme for teleporting an unknown single-qubit photonic state is revisited. With the help of quantum nondemolition measurements, the scheme now can be achieved in an almost deterministic way. The weak-cross-Kerr-nonlinearities-based quantum nondemolition measurement acts as an entangler as well as the Bell-state analyzer, and thus plays a similar role as the CNOT gate in the teleportation process. This improvement makes the present scheme more efficient than the schemes using nonunitary projective measurements and feasible with the current experimental technology.
Abstract：Scheme for teleporting an unknown single-qubit photonic state is revisited. With the help of quantum nondemolition measurements, the scheme now can be achieved in an almost deterministic way. The weak-cross-Kerr-nonlinearities-based quantum nondemolition measurement acts as an entangler as well as the Bell-state analyzer, and thus plays a similar role as the CNOT gate in the teleportation process. This improvement makes the present scheme more efficient than the schemes using nonunitary projective measurements and feasible with the current experimental technology.
ZHOU Jian;YANG Ming;LU Yan;CAO Zhuo-Liang;. Nearly Deterministic Teleportation of a Photonic Qubit with Weak Cross-Kerr Nonlinearities[J]. 中国物理快报, 2009, 26(10): 100301-100301.
ZHOU Jian, YANG Ming, LU Yan, CAO Zhuo-Liang,. Nearly Deterministic Teleportation of a Photonic Qubit with Weak Cross-Kerr Nonlinearities. Chin. Phys. Lett., 2009, 26(10): 100301-100301.
[1] Nielsen M A and Chuang I L 2000 Quantum Computationand Quantum Information(Cambridge: Cambridge University) [2] Furusawa A, S{\orensen J L, Braunstein S L, Fuchs C A,Kimble H J and Polzik E S 1998 Science 282 706 [3] Bennett C H, Brassard G, Cr\'{epeau C, Jozsa R, Peres Aand Wootters W K 1993 Phys. Rev. Lett. 70 1895 [4] Bouwmeester D, Pan J W, Mattle K, Eibl M, Weinfurter H andZeilinger A 1997 Nature 390 575 Boschi D, Branca S, Martini F De, Hardy L and Popescu S 1998 Phys. Rev. Lett. 80 1121 [5] Pan J W, Bouwmeester D, Weinfurter H and Zeilinger A 1998 Phys. Rev. Lett. 80 3891 [6] Scully M O and Zubairy M S 1997 Quantum optics(NewYork: Cambridge University) [7] Chai J H and Guo G C 1997 Chin. Phys. Lett. 14524 [8] Nemoto K and Munro W J 2004 Phys. Rev. Lett. 93 250502 [9] Wang W F, Sun X Y and Luo X B 2008 Chin. Phys.Lett. 25 839 [10] Barrett S D, Kok P, Nemoto K, Beausoleil R G, Munro W Jand Spiller T P 2005 Phys. Rev. A 71 060302(R) [11] Fiur\'{a\v{sek J, Mi\v{sta Jr L and Filip R 2003 Phys. Rev. A 67 022304 [12] Munro W J, Nemoto K, Beausoleil R G and Spiller T P 2005 Phys. Rev. A 71 033819 Munro W J, Nemoto K and Spiller T 2005 New J. Phys. 7 137 [13] Nemoto K and Munro W J 2005 Phys. Lett. A 344104 [14] Jeong H, Kim M S, Ralph T C and Ham B S 2004 Phys.Rev. A 70 061801(R) Jeong H 2005 Phys. Rev. A 72 034305 [15] Lin Q and Li J 2009 Phys. Rev. A 79 022301 [16] Spiller T P, Nemoto K, Braunstein S L, Munro W J, VanLoock P and Milburn G J 2006 New J. Phys. 8 30 Metz J, Trupke M and Beige A 2006 Phys. Rev. Lett. 97 040503 [17] Sheng Y B, Deng F G and Zhou H Y 2008 Phys. Rev. A 77 042308 [18] Sheng Y B, Deng F G and Zhou H Y 2008 Phys. Rev. A 77 062325 [19] Sheng Y B, Deng F G and Zhou H Y 2009 arXiv:0907.0050 [20] Mi\v{sta Jr L and Filip R 2005 Phys. Rev. A 71 032342 [21] Boyd R W 1999 J. Mod. Opt. 46 367 [22] Kok P, Lee H and Dowling J P 2002 Phys. Rev. A 66 063814 [23] Li X, Voss P L, Sharping J E and Kumar P 2005 Phys.Rev. Lett. 94 053601 [24] Harris S E and Hau L V 1999 Phys. Rev. Lett. 82 4611 [25] Braje D A, Bali\'{c V, Yin G Y and Harris S E 2003 Phys. Rev. A 68 041801(R) [26] Grangier P, Levenson J A and Poizat J P 1998 Nature 369 537 [27] Turchette Q A, Hood C J, Lange W, Mabuchi H and Kimble HJ 1995 Phys. Rev. Lett. 75 4710 [28] Jeong H 2006 Phys. Rev. A 73 052320 [29] Barrett S D and Milburn G J 2006 Phys. Rev. A 74 060302(R) [30] Childress L, Taylor J M, S{\orensen A S and Lukin M D2006 Phys. Rev. Lett. 96 070504
2009, Vol. 26 
