| ATOMIC AND MOLECULAR PHYSICS |
|
|
|
|
Enhanced Loading of $^{40}$K from Natural Abundance Potassium Source with a High Performance 2D$^{+}$ MOT |
| Jiang-Ling Yang1,2, Yun Long1, Wei-Wei Gao1, Lan Jin1, Zhan-Chun Zuo1,2, Ru-Quan Wang1,2** |
1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190
2School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049
|
|
| Cite this article: |
|
Jiang-Ling Yang, Yun Long, Wei-Wei Gao et al 2018 Chin. Phys. Lett. 35 033701 |
|
|
|
|
Abstract $^{40}$K is one of the most important atomic species for ultra-cold atomic physics. Due to the extremely low concentration (0.012%) of $^{40}$K in natural abundance of potassium, most experiments use 4–10% enriched potassium source, which have greatly suffered from the extremely low annual production and significant price hikes in recent years. Using naturally abundant potassium source, we capture $5.4\times10^{6}$ cold $^{40}$K atoms with the help of a high performance of two-dimensional magneto-optical trap (2D$^{+}$ MOT), which is almost three orders of magnitude greater than previous results without the 2D$^{+}$ MOT. The number of the $^{40}$K atoms is sufficient for most ultra-cold $^{40}$K experiments, and our approach provides an ideal alternative for the field.
|
|
|
Received: 21 November 2017
Published: 25 February 2018
|
|
|
|
|
| Fund: Supported by the National Key Research and Development Program of China under Grant Nos 2016YFA0300600 and 2016YFA0301500, and the National Natural Science Foundation of China under Grant Nos 11474347, 61227902 and 61775232. |
|
|
|
| [1] | Philips W D, Prodan J V and Metcalf H J 1985 J. Opt. Soc. Am. B 2 1751 | | [2] | Phillips W D 1998 Rev. Mod. Phys. 70 721 | | [3] | Winel, D J and Itano W M 1979 Phys. Rev. A 20 1521 | | [4] | Anderson M H, Ensher J R, Matthews M R, Wieman C E and Cornell E A 1995 Science 269 198 | | [5] | Davis K B, Mewes M O, Andrews M R, Van-Druten N J, Durfee D S, Kurn D M and Ketterle W 1995 Phys. Rev. Lett. 75 3969 | | [6] | Bradley C C, Sackett C A, Tollett J J and Hulet R G 1995 Phys. Rev. Lett. 75 1687 | | [7] | deMarco B and Jin D S 1999 Science 285 1703 | | [8] | Loftus T, Regal C A, Ticknor C, Bohn J L and Jin D S 2002 Phys. Rev. Lett. 88 173201 | | [9] | Holl, M, Kokkelmans S J J M F, Chiofalo M L and Walser R 2001 Phys. Rev. Lett. 87 120406 | | [10] | Ohashi Y and Griffin A 2002 Phys. Rev. Lett. 89 130402 | | [11] | Stajic J, Milstein J N, Chen Q J, Chiofalo M L, Holl, M J and Levin K 2004 Phys. Rev. A 69 063610 | | [12] | Giorgini S, Pitaevskii L P and Stringari S 2008 Rev. Mod. Phys. 80 1215 | | [13] | Kraemer T, Mark M, Waldburger P, Danzl J G, Chin C, Engeser B, Lange A D, Pilch K, Jaakkola A, Nägerl H C and Grimm R 2006 Nature 440 315 | | [14] | Inouye S, Goldwin J, Olsen M L, Ticknor C, Bohn J L and Jin D S 2004 Phys. Rev. Lett. 93 183201 | | [15] | Ferlaino F, D'Errico C, Roati G, Zaccanti M, Inguscio M, Modugno G and Simoni A 2006 Phys. Rev. A 73 040702(R) | | [16] | Ospelkaus S, Ospelkaus C, Humbert L, Sengstock K and Bongs K 2006 Phys. Rev. Lett. 97 120403 | | [17] | Jee W P, Wu C H, Santiago I, Tiecke T G, Will S, Ahmadi P and Zwierlein M W 2012 Phys. Rev. A 85 051602(R) | | [18] | Moses S A, Covey J P, Miecnikowski M T, Jin D S and Ye J 2016 Nat. Phys. 13 13 | | [19] | DeMille D 2002 Phys. Rev. Lett. 88 067901 | | [20] | Cataliotti F S, Cornell E A, Fort C, Inguscio M, Marin F, Prevedelli M, Ricci L and Tino G M 1998 Phys. Rev. A 57 1136 | | [21] | DeMarco B, Rohner H and Jin D S 1999 Rev. Sci. Instrum. 70 1967 | | [22] | Wei D, Xiong D Z, Chen H X, Wang P J, Guo L and Zhang J 2007 Chin. Phys. Lett. 24 679 | | [23] | Wu C H, Santiago I, Jee W P, Ahmadi P and Zwierlein M W 2011 Phys. Rev. A 84 011601(R) | | [24] | Lin Y J, Perry A R, Compton R L, Spielman I B and Porto J V 2009 Phys. Rev. A 79 063631 | | [25] | Zhang F, Long Y, Yang J L, Ma G Q, Yin J P and Wang R Q 2015 Chin. Phys. Lett. 32 123701 | | [26] | Ospelkaus S, Ni K K, Wang D, de Miranda M H G, Neyenhuis B, Quéméner G, Julienne P S, Bohn J L, Jin D S and Ye J 2010 Science 1184121 | | [27] | Taglieber M, Voigt A C, Aoki T, Hänsch T W and Dieckmann K 2008 Phys. Rev. Lett. 100 010401 | | [28] | Xiong D Z, Chen H X, Wang P J, Yu X D, Gao F and Zhang J 2008 Chin. Phys. Lett. 25 843 | | [29] | Ridinger A, Chaudhuri S, Salez T, Fernandes D R, Bouloufa N, Dulieu O, Salomon C and Chevy F 2011 Europhys. Lett. 96 33001 | | [30] | Ridinger A, Chaudhuri S, Salez T, Eismann U, Fernandes D R, Magalhães K, Wilkowski D, Salomon C and Chevy F 2011 Eur. Phys. J. D 65 223 |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
