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We investigate the effects of external field parameters, including the strength of Rabi pulse, its width, and single-photon detuning, on conversion from ultracold atoms to heteronuclear triatomic molecules by two-photon stimulated Raman adiabatic passage. It is found that the conversion efficiency of the system decreases first with the strength of the Stokes pulse increasing, then oscillates, and finally approaches a stable value, which is less than 1. But for the pump pulse, the efficiency first increases with the increase of the pulse intensity, and then approaches 1 quickly. The results show that the two pulses play different roles in the conversion. The pulse width can not only determine the final conversion efficiency, but also be used to reflect the time needed for stable conversion. The system has a higher efficiency of conversion for red detuning pump laser, but the blue detuning is not conducive to the formation of the molecules. In addition, the differences of the adiabaticity and conversion efficiency among different reaction pathways are discussed.
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Keywords:
- heteronuclear triatomic molecule /
- stimulated Raman adiabatic passage /
- adiabatic parameter /
- adiabatic fidelity
[1] Chin C, Flambaum V V, Kozlov M G 2009 New J. Phys. 11 055048
[2] Carr L D, DeMille D, Krems R V, Ye J 2009 New J. Phys. 11 055049
[3] Köhler T, Góral K, Julienne P 2006 Rev. Mod. Phys. 78 1311
[4] Jones K M, Tiesinga E, Lett P D, Julienne P 2006 Rev. Mod. Phys. 78 483
[5] Chin C, Grimm R, Julienne P, Tiesinga E 2010 Rev. Mod. Phys. 82 1225
[6] Mackie M, Kowalski R, Javanainen J 2000 Phys. Rev. Lett. 84 3803
[7] Mackie M 2002 Phys. Rev. A 66 043613
[8] Drummond P D, Kheruntsyan K V, Heinzen D J, Wynar R H 2002 Phys. Rev. A 65 063619
[9] Mackie M, Härkönen K, Collin A, Suominen K A, Javanainen J 2004 Phys. Rev. A 70 013614
[10] Meng S Y, Liu J 2010 Prog. Phys. 30 280 (in Chinese) [孟少英、刘 杰 2010 物理学进展 30 280]
[11] Bergmann K, Theuer H, Shore B W 1998 Rev. Mod. Phys. 70 1003
[12] Xie M, Ling L, Yang G J 2005 Acta Phys. Sin. 54 3616 (in Chinese) [谢 旻、凌 琳、杨国建 2005 物理学报 54 3616]
[13] Winkler K, Thalhammer G, Theis M, Ritsch H, Grimm R,Denschlag J H 2005 Phys. Rev. Lett. 95 063202
[14] Sage J M, Sainis S, Bergeman T, DeMille D 2005 Phys. Rev. Lett. 94 203001
[15] Winkler K, Lang F, Thalhammer G, Straten P V, Grimm R, Denschlag J H 2007 Phys. Rev. Lett. 98 043201
[16] Ni K K, Ospelkaus S, de Miranda M H G, Peer A, Neyenhuis B, Zirbel J J, Kotochigova S, Julienne P S, Jin D S, Ye J 2008 Science 322 231
[17] Ospelkaus S, Ni K K, Quéméner G, Neyenhuis B, Wang D, de Miranda M H G, Bohn J L, Ye J, Jin D S 2010 Phys. Rev. Lett. 104 030402
[18] Aikawa K, Akamatsu D, Hayashi M, Oasa K, Kobayashi J, Naidon P, Kishimoto T, Ueda M, Inouye S 2010 Phys. Rev. Lett. 105 203001
[19] Pu H, Maenner P, Zhang W, Ling H Y 2007 Phys. Rev. Lett. 98 050406
[20] Ling H Y, Maenner P, Zhang W, Pu H 2007 Phys. Rev. A 75 033615
[21] Jing H, Zheng F, Jiang Y, Geng Z 2008 Phys. Rev. A 78 033617
[22] Meng S Y, Fu L B, Liu J 2008 Phys. Rev. A 78 053410
[23] Meng S Y, Fu L B, Chen J, Liu J 2009 Phys. Rev. A 79 063415
[24] Jing H, Cheng J, Meystre P 2008 Phys. Rev. A 77 043614
[25] Geng Z D, Jia N, Zhao X, Xia T Y, Jing H 2010 Chin. Phys. Lett. 27 030303
[26] Sun X P, Feng Z F,Li W D, Jia S T 2007 Acta Phys.Sin. 56 5727 (in Chinese) [孙晓鹏、冯志芳、李卫东、贾锁堂 2007 物理学报 56 5727]
[27] Gupta M, Dastidar K R 2010 Phys. Rev. A 81 033610
[28] Meng S Y, Wu W 2009 Acta Phys. Sin. 58 5311 (in Chinese) [孟少英、吴 炜 2009 物理学报 58 5311]
[29] Meng S Y, Wu W,Liu B 2009 Acta Phys. Sin. 58 6902 (in Chinese) [孟少英、吴 炜、刘 彬 2009 物理学报 58 6902]
[30] Lu L H, Li Y Q 2008 Phys. Rev. A 77 053611
[31] Meng S Y, Wu W, Liu B, Ye D F, Fu L B 2009 Chin. Phys. B 18 3844
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[1] Chin C, Flambaum V V, Kozlov M G 2009 New J. Phys. 11 055048
[2] Carr L D, DeMille D, Krems R V, Ye J 2009 New J. Phys. 11 055049
[3] Köhler T, Góral K, Julienne P 2006 Rev. Mod. Phys. 78 1311
[4] Jones K M, Tiesinga E, Lett P D, Julienne P 2006 Rev. Mod. Phys. 78 483
[5] Chin C, Grimm R, Julienne P, Tiesinga E 2010 Rev. Mod. Phys. 82 1225
[6] Mackie M, Kowalski R, Javanainen J 2000 Phys. Rev. Lett. 84 3803
[7] Mackie M 2002 Phys. Rev. A 66 043613
[8] Drummond P D, Kheruntsyan K V, Heinzen D J, Wynar R H 2002 Phys. Rev. A 65 063619
[9] Mackie M, Härkönen K, Collin A, Suominen K A, Javanainen J 2004 Phys. Rev. A 70 013614
[10] Meng S Y, Liu J 2010 Prog. Phys. 30 280 (in Chinese) [孟少英、刘 杰 2010 物理学进展 30 280]
[11] Bergmann K, Theuer H, Shore B W 1998 Rev. Mod. Phys. 70 1003
[12] Xie M, Ling L, Yang G J 2005 Acta Phys. Sin. 54 3616 (in Chinese) [谢 旻、凌 琳、杨国建 2005 物理学报 54 3616]
[13] Winkler K, Thalhammer G, Theis M, Ritsch H, Grimm R,Denschlag J H 2005 Phys. Rev. Lett. 95 063202
[14] Sage J M, Sainis S, Bergeman T, DeMille D 2005 Phys. Rev. Lett. 94 203001
[15] Winkler K, Lang F, Thalhammer G, Straten P V, Grimm R, Denschlag J H 2007 Phys. Rev. Lett. 98 043201
[16] Ni K K, Ospelkaus S, de Miranda M H G, Peer A, Neyenhuis B, Zirbel J J, Kotochigova S, Julienne P S, Jin D S, Ye J 2008 Science 322 231
[17] Ospelkaus S, Ni K K, Quéméner G, Neyenhuis B, Wang D, de Miranda M H G, Bohn J L, Ye J, Jin D S 2010 Phys. Rev. Lett. 104 030402
[18] Aikawa K, Akamatsu D, Hayashi M, Oasa K, Kobayashi J, Naidon P, Kishimoto T, Ueda M, Inouye S 2010 Phys. Rev. Lett. 105 203001
[19] Pu H, Maenner P, Zhang W, Ling H Y 2007 Phys. Rev. Lett. 98 050406
[20] Ling H Y, Maenner P, Zhang W, Pu H 2007 Phys. Rev. A 75 033615
[21] Jing H, Zheng F, Jiang Y, Geng Z 2008 Phys. Rev. A 78 033617
[22] Meng S Y, Fu L B, Liu J 2008 Phys. Rev. A 78 053410
[23] Meng S Y, Fu L B, Chen J, Liu J 2009 Phys. Rev. A 79 063415
[24] Jing H, Cheng J, Meystre P 2008 Phys. Rev. A 77 043614
[25] Geng Z D, Jia N, Zhao X, Xia T Y, Jing H 2010 Chin. Phys. Lett. 27 030303
[26] Sun X P, Feng Z F,Li W D, Jia S T 2007 Acta Phys.Sin. 56 5727 (in Chinese) [孙晓鹏、冯志芳、李卫东、贾锁堂 2007 物理学报 56 5727]
[27] Gupta M, Dastidar K R 2010 Phys. Rev. A 81 033610
[28] Meng S Y, Wu W 2009 Acta Phys. Sin. 58 5311 (in Chinese) [孟少英、吴 炜 2009 物理学报 58 5311]
[29] Meng S Y, Wu W,Liu B 2009 Acta Phys. Sin. 58 6902 (in Chinese) [孟少英、吴 炜、刘 彬 2009 物理学报 58 6902]
[30] Lu L H, Li Y Q 2008 Phys. Rev. A 77 053611
[31] Meng S Y, Wu W, Liu B, Ye D F, Fu L B 2009 Chin. Phys. B 18 3844
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