篇目详细内容 |
【篇名】 |
Coherent manipulation of spin squeezing in atomic Bose-Einstein condensate via electromagnetically induced transparency |
【刊名】 |
Frontiers of Physics |
【刊名缩写】 |
Front. Phys |
【ISSN】 |
2095-0462 |
【EISSN】 |
2095-0470 |
【DOI】 |
10.1007/s11467-013-0288-x |
【出版社】 |
Higher Education Press and Springer-Verlag Berlin
Heidelberg |
【出版年】 |
2013 |
【卷期】 |
8
卷1期 |
【页码】 |
27-33
页,共
7
页 |
【作者】 |
Song-Song Li;
Ji-Bing Yuan;
Le-Man Kuang;
|
【关键词】 |
spin squeezing; atomic Bose-Einstein condensates via electromagnetically induced transparency |
【摘要】 |
We propose a scheme to coherently control spin squeezing of atomic Bose-Einstein condensate (BEC) via the technique of electromagnetically induced transparency (EIT). We study quantum dynamics of the mean spin vector and spin squeezing. It is shown that the mean spin vector and spin squeezing of the BEC can be controlled and manipulated by adjusting the external coupling fields or/and internal nonlinear interactions of the BEC. It is indicated that the spin squeezing can be generated rapidly in the dynamical process and maintained in a long time interval. It is found that a larger effective Rabi coupling between atoms and lasers can produce a stronger spin squeezing, and the squeezing can maintain a longer time interval. |