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The frequency entangled biphoton source generated via spontaneous parametric down-conversion process (SPDC) has found numerous applications in quantum information processing and relevant fields. We report on an experimental generation of coincident-frequency entanglement from periodically poled potassium titanyl phosphate, pumped by an ultra-short pulsed optical source with duration less than 20 fs. Based on the Hong-Ou-Mandel interferometric coincidence measurement setup, a visibility of about 42% is demonstrated, which indicates degraded frequency indistinguishibility of the down-converted biphotons. Through theoretical investigation, such a degradation can be perfectly explained by the nonnegligible second-order dispersion terms in the Taylor-expanded phase mismatching function for the case of ultra-broadband spectrum of the pulsed pump. The fitting to the experimental results is further used and perfect agreement is achieved. The results imply that the spectral bandwidth of the pump can affect the generated coincident-frequency entanglement.
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Keywords:
- coincident-frequency entanglement /
- Hong-Ou-Mandel interferometric measurement /
- coincidence counts
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[5] Ekert A K 1991 Phys. Rev. Lett. 67 661
[6] Jennewein T, Simon C, Weihs G, Weinfurter H, Zeilinger A 2000 Phys. Rev. Lett. 84 4729
[7] Gisin N, Ribordy G, Tittel W, Zbinden H 2002 Rev. Mod. Phys. 74 145
[8] Tittel W, Brendel J, Zbinden H, Gisin N 2000 Phys. Rev. Lett. 84 4737
[9] Naik D S, Peterson C G, White A G, Berglund A J, Kwiat P G 2000 Phys. Rev. Lett. 84 4733
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[11] Ralph T C, Gilchrist A, Milburn G J, Munro W J, Glancy S 2003 Phys. Rev. A 68 042319
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[13] Marek P, Fiurasek J 2010 Phys. Rev. A 82 014304
[14] Tipsmark A, Dong R, Laghaout A, Marek P, Jezek M, Andersen U L 2011 Phys. Rev. A 84 050301(R)
[15] Pittman T B, Shih Y H, Strekalov D V, Sergienko A V 1995 Phys. Rev. A 52 R3429
[16] Altman A R, Köpl K G, Corndorf E, Kumar P, Barbosa G A 2005 Phys. Rev. Lett. 94 123601
[17] Erkmen B I, Shapiro J H 2009 Phys. Rev. A 79 023833
[18] Brendel J, Gisin N, Tittel W, Zbinden H 1999 Phys. Rev. Lett. 82 2594
[19] Giovannetti V, Lloyd S, Maccone L 2004 Science 306 1330
[20] Hong C K, Ou Z Y, Mandel L 1987 Phys. Rev. Lett. 59 2044
[21] Steinberg A M, Kwiat P G, Chiao R Y 1992 Phys. Rev. A 45 6659
[22] Giovannetti V, Lloyd S, Maccone L 2001 Phys. Rev. Lett. 87 117902
[23] Bahder T B, Golding W M 2004 7th International Conference on Quantum, Communication Glasgow, UK, July 25-29, 2004 p395
[24] Valencia A, Scarcelli G, Shih Y 2004 Appl. Phys. Lett. 85 2635
[25] Abouraddy A F, Nasr M B, Saleh B E A, Sergienko A V, Teich M C 2002 Phys. Rev. A 65 053817
[26] Sergienko A V, Saleh B E A, Teich M C 2004 Opt. Lett. 29 2429
[27] Nasr M B, Saleh B E A, Sergienko A V, Teich M C 2003 Phys. Rev. Lett. 91 083601
[28] Nasr M B, Carrasco S, Saleh B E A, Sergienko A V, Teich M C, Torres J P, Torner L, Hum D S, Fejer M M 2008 Phys. Rev. Lett. 100 183601
[29] Giovannetti V, Maccone L, Shapiro J H, Wong F N C 2002 Phys. Rev. Lett. 88 183602
[30] Giovannetti V, Maccone L, Shapiro J H, Wong F N C 2002 Phys. Rev. A 66 043813
[31] Kuzucu O, Fiorentino M, Albota M A, Wong F C, Kartner F X 2005 Phys. Rev. Lett. 94 083601
[32] Fradkin K, Arie A, Skliar A, Rosenman G 1999 Appl. Phys. Lett. 74 914
[33] Fan T Y, Huang C E, Hu B Q, Eckardt R C, Fan Y X, Byer R L, Feigelson R S 1987 Appl. Opt. 26 2390
[34] Emanueli S, Arie A 2003 Appl. Opt. 42 6661
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[1] Bouwmeester D, Ekert A, Zeilinger A 2000 The Physics of Quantum Information: Quantum Cryptography, Quantum Teleportation, Quantum Computation (Berlin: Springer-Verlag)
[2] Bennett C H, Brassard G, Crépeau C, Jozsa R, Peres A, Wootters W K 1993 Phys. Rev. Lett. 70 1895
[3] Bouwmeester D, Pan J W, Mattle K, Eibl M, Weinfurter H, Zeilinger A 1997 Nature 390 575
[4] KimY H, Kulik S P, Shih Y H 2001 Phys. Rev. Lett. 86 1370
[5] Ekert A K 1991 Phys. Rev. Lett. 67 661
[6] Jennewein T, Simon C, Weihs G, Weinfurter H, Zeilinger A 2000 Phys. Rev. Lett. 84 4729
[7] Gisin N, Ribordy G, Tittel W, Zbinden H 2002 Rev. Mod. Phys. 74 145
[8] Tittel W, Brendel J, Zbinden H, Gisin N 2000 Phys. Rev. Lett. 84 4737
[9] Naik D S, Peterson C G, White A G, Berglund A J, Kwiat P G 2000 Phys. Rev. Lett. 84 4733
[10] Bennett C H, DiVincenzo D 2000 Nature 404 247
[11] Ralph T C, Gilchrist A, Milburn G J, Munro W J, Glancy S 2003 Phys. Rev. A 68 042319
[12] Lund A P, Ralph T C, Haselgrove H L 2008 Phys. Rev. Lett. 100 030503
[13] Marek P, Fiurasek J 2010 Phys. Rev. A 82 014304
[14] Tipsmark A, Dong R, Laghaout A, Marek P, Jezek M, Andersen U L 2011 Phys. Rev. A 84 050301(R)
[15] Pittman T B, Shih Y H, Strekalov D V, Sergienko A V 1995 Phys. Rev. A 52 R3429
[16] Altman A R, Köpl K G, Corndorf E, Kumar P, Barbosa G A 2005 Phys. Rev. Lett. 94 123601
[17] Erkmen B I, Shapiro J H 2009 Phys. Rev. A 79 023833
[18] Brendel J, Gisin N, Tittel W, Zbinden H 1999 Phys. Rev. Lett. 82 2594
[19] Giovannetti V, Lloyd S, Maccone L 2004 Science 306 1330
[20] Hong C K, Ou Z Y, Mandel L 1987 Phys. Rev. Lett. 59 2044
[21] Steinberg A M, Kwiat P G, Chiao R Y 1992 Phys. Rev. A 45 6659
[22] Giovannetti V, Lloyd S, Maccone L 2001 Phys. Rev. Lett. 87 117902
[23] Bahder T B, Golding W M 2004 7th International Conference on Quantum, Communication Glasgow, UK, July 25-29, 2004 p395
[24] Valencia A, Scarcelli G, Shih Y 2004 Appl. Phys. Lett. 85 2635
[25] Abouraddy A F, Nasr M B, Saleh B E A, Sergienko A V, Teich M C 2002 Phys. Rev. A 65 053817
[26] Sergienko A V, Saleh B E A, Teich M C 2004 Opt. Lett. 29 2429
[27] Nasr M B, Saleh B E A, Sergienko A V, Teich M C 2003 Phys. Rev. Lett. 91 083601
[28] Nasr M B, Carrasco S, Saleh B E A, Sergienko A V, Teich M C, Torres J P, Torner L, Hum D S, Fejer M M 2008 Phys. Rev. Lett. 100 183601
[29] Giovannetti V, Maccone L, Shapiro J H, Wong F N C 2002 Phys. Rev. Lett. 88 183602
[30] Giovannetti V, Maccone L, Shapiro J H, Wong F N C 2002 Phys. Rev. A 66 043813
[31] Kuzucu O, Fiorentino M, Albota M A, Wong F C, Kartner F X 2005 Phys. Rev. Lett. 94 083601
[32] Fradkin K, Arie A, Skliar A, Rosenman G 1999 Appl. Phys. Lett. 74 914
[33] Fan T Y, Huang C E, Hu B Q, Eckardt R C, Fan Y X, Byer R L, Feigelson R S 1987 Appl. Opt. 26 2390
[34] Emanueli S, Arie A 2003 Appl. Opt. 42 6661
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