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A linear optical experimental scheme for generation of spatial entangled qudits is proposed, which is based on the post-selection technique and is realized with some certain probability. In order to do it deterministically, the scheme based on the C-path gate which works with weak cross-Kerr nonlinearity is proposed. This new scheme is suitable for the generation of spatial entangled qudits with any photons and any dimensions. Since the generation is deterministic without post-selection technique, the entangled qudits can be used in the quantum information process without any limits. In addition, this scheme is feasible for current experimental technology.
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Keywords:
- spatial entangled qudits /
- cross-Kerr effect
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[1] ［1］Langford N K, Dalton R B, Harvey M D, O'Brien J L, Pryde G J, Gilchrist A, Bartlett S D, White A G 2004 Phys. Rev. Lett. 93 053601
[2] ［2］Spekkens R W, Rudolph T 2001 Phys. Rev. A 65 012310
[3] ［3］Bruβ D, Macchiavello C 2002 Phys. Rev. Lett. 88 127901
[4] ［4］Cerf N J, Bourennane M, Karlsson A, Gisin N 2002 Phys. Rev. Lett. 88 127902
[5] ［5］Durt T, Cerf N J, Gisin N, Zukowski M 2004 Phys. Rev. A 67 012311
[6] ［6］Terriza G M, Vaziri A, UeháDcˇek J, Hradil Z, Zeilinger A 2004 Phys. Rev. Lett. 92 167903
[7] ［7］Grolacher S, Jennewein Y, Vaziri A, Weihs G, Zeilinger A 2006 New J. Phys. 8 75
[8] ［8］Ralph T C, Resch K J, Gilchrist A 2007 Phys. Rev. A 75 022313
[9] ［9］Lanyon B P, Barbieri M, Almeida M P, Jennewein T, Ralph T C, Resch K J, Pryde G J, O'Brien J L, Gilchrist A, White A G 2009 Nature Physics 5 134
[10] ］Du Q H, Lin X M, Chen Z H, Lin G W, Chen L B, Gu Y J 2008 Chin. Phys. B 17 807
[11] ］Tao Y J, Tian D P, Hu M L, Qin M 2008 Chin. Phys. B 17 624
[12] ］Bogdanov Y I, Chekhova M V, Kulik S P, Maslennikov G A, Zhukov A A, Oh C H, Tey M K 2004 Phys. Rev. Lett. 93 230503
[13] ］Bogdanov Y I, Chekhova M V, Krivitsky L A, Kulik S P, Penin A N, Zhukov A A, Kwek L C, Oh C H, Tey M K 2004 Phys.Rev. A 70 042303
[14] ］Bogdanov Y I, Chekhova M V, Kulik S P, Maslennikov G A, Oh C H, Tey M K 2005 Proc. SPIE 202 5833
[15] ］Lanyon B P, Weinhold T J, Langford N K, O'Brien J L, Resch K J, Gilchrist A, White A G 2008 Phys. Rev. Lett. 100 060504
[16] ］Mair A, Vaziri A, Weihs G, Zeilinger A 2001 Nature (London) 412 313
[17] ］Reck M, Zeilinger A, Bernstein H J, Bertani P 1994 Phys. Rev. Lett. 73 58
[18] ］ukowski M, Zeilinger A, Horne M A 1997 Phys. Rev. A 55 2564
[19] ］Lin Q, He B 2009 Phys. Rev. A 80 062312
[20] ］Lin Q 2009 Chinese Phys. Lett. 26 040301
[21] ］Barrett S D, Kok P, Nemoto K, Beausoleil R G, Munro W J, Spiller T P 2005 Phys. Rev. A 71 060302(R)
[22] ］Nemoto K, Munro W J 2004 Phys. Rev. Lett. 93 250502
[23] ］Munro W J, Nemoto K, Spiller T P 2005 New J. Phys. 7 137
[24] ］Spiller T P, Nemoto K, Braunstein S L, Munro W J, Loock P van, Milburn G J 2006 New J. Phys. 8 30
[25] ］Lin Q 2009 Acta Phys. Sin. 58 5983 (in Chinese) ［林青 2009 物理学报 58 5983］
[26] ］Lin Q, Li J 2009 Phys. Rev. A 79 022301
[27] ］Lin Q, He B 2009 Phys. Rev. A 80 042310
[28] ］Lin Q, He B, Bergou J A, Ren Y H 2009 Phys. Rev. A 80 042311
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