| 查看: 529 | 回复: 1 | ||
| 本帖产生 1 个 博学EPI ，点击这里进行查看 | ||
rogersystop木虫 (正式写手)
|
[求助]
求解释一下feshbach resonance
|
|
| 刚看到，不是很懂啊？ |
回复此楼» 猜你喜欢
售SCI一区T0P文章，我:8.O.55.1.O54,科目全,可伽急
已经有8人回复
-
面上没中，邀请各位路过的虫友分析一下分数
已经有12人回复
-
两块石头
已经有8人回复
-
初秋的晨风
已经有6人回复
-
学科评审组评审是指会评吗？
已经有9人回复
-
售SCI一区T0P文章，我:8O.55.1.O.54,科目全,可伽急
已经有14人回复
-
广西大学-广州大学招聘博士后 欢迎广大优秀人才！！！
已经有7人回复
-
科研人应该花精力去思考如何解决问题，而不是去凝练问题
已经有17人回复
-
Ei源刊怎么投
已经有4人回复
-
哈尔滨工业大学韩晓军教授课题组招收2027年硕士推免生及博士研究生
已经有3人回复
crazyjohnnie
新虫 (初入文坛)
- 博学EPI: 1
- 应助: 0 (幼儿园)
- 金币: 4188.3
- 散金: 35
- 帖子: 32
- 在线: 64.6小时
- 虫号: 2548195
- 注册: 2013-07-16
- 性别: GG
- 专业: 原子和分子物理
【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★
rogersystop: 金币+10, 博学EPI+1, ★★★很有帮助, 谢谢！ 2013-07-16 14:07:31
rogersystop: 金币+10, 博学EPI+1, ★★★很有帮助, 谢谢！ 2013-07-16 14:07:31
|
In physics, Feshbach resonance, named after Herman Feshbach, is a resonance of a many-body system in which a bound state is achieved if the coupling(s) between at least one internal degree of freedom and the reaction coordinates which lead to dissociation vanish. The opposite situation, when a bound state is not formed, is a shape resonance. Feshbach resonances have become important in the study of fermi gases, as these resonances allow for the creation of Bose–Einstein condensates (BECs). In the context of a BEC, the Feshbach resonance occurs when the energy of a bound state of an interatomic potential is equal to the kinetic energy of a colliding pair of atoms, which have hyperfine structure coupled via Coulomb or exchange interactions. This condition is rare in our local conditions, but can be satisfied in ultracold alkali atoms. Feshbach Resonance在冷原子实验用有很多用途。现在制备BEC-BCS Crossover也需要用到。 |
2楼2013-07-16 14:00:28