| 查看: 473 | 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
292求调剂
已经有3人回复
-
11408 一志愿西电，277分求调剂
已经有3人回复
-
材料295
已经有13人回复
-
085600材料与化工调剂
已经有24人回复
-
316求调剂
已经有3人回复
-
一志愿北交大材料工程总分358
已经有4人回复
-
081700化学工程与技术 一志愿中海洋 323 求调剂学校
已经有10人回复
-
387求调剂
已经有5人回复
-
一志愿哈尔滨工业大学085600英一数二337分求调剂
已经有6人回复
-
085600，320分求调剂
已经有6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
