| 1. | How can a microchip hold and control a cloud of atoms suspended near its surface
微晶片如何将原子云留在其表面附近并且加以控制？ |
| 2. | In particular , we can now trap , move and manipulate the atoms with the help of microchips
例如，我们可以使用微晶片来捕捉、移动以及操控原子云。 |
| 3. | When this happens , most of the atom cloud finds itself trapped in the chip ' s magnetic field
这麽做之后，大多数的原子云就会被捕捉到晶片的磁场里。 |
| 4. | Within 100 microns of the chip surface , the field forms the magnetic trap that suspends the atom cloud in free space
在晶片表面100微米以内，磁场构成了磁阱，可以将原子云托在半空中。 |
| 5. | An essential element of a mot is an array of six laser beams that bathe the atoms on all sides and from above and below
Mot的主要部份是六道雷射光束所形成的阵列，从上下四方照射在原子云上。 |
| 6. | Furthermore , the stronger the trap ( the more tightly the atoms are squeezed into a small volume ) , the faster and more efficient the cooling
此外，阱越深（越能让原子云挤在一个小空间里） ，冷却起来就越快越有效。 |
| 7. | Thus , in the 50 or so research labs that are now able to produce becs , the tiny cloud of ultracold atoms is usually surrounded by several tons of high - tech equipment
因此，在有能力做出bec的大约50间研究实验室里，微小的超冷原子云周围通常都环绕著好几吨的高科技设备。 |
| 8. | Because the atoms are so close to the wires , less than one watt of electric power is enough to operate this magnetic trap ? it could easily be run off the battery of a laptop computer
由于原子云离导线相当近，产生这个磁阱所需要的电能不到一瓦特? ?一般笔记型电脑的电池便足以供应。 |
| 9. | The problem with a poor vacuum is that the stray remaining particles steadily deplete the cloud of trapped atoms by colliding with them , thereby knocking them out of the magnetic trap
真空度不佳所造成的问题是：残留的粒子会不断撞击阱里的原子云，原子被撞出磁阱后，原子云便会减少。 |
| 10. | If the lasers and the chip are oriented in the right way , the reflected beams can replace the blocked ones , and the mot works again , producing a cloud of cold atoms right above the chip surface
如果雷射和晶片摆的方位正确，反射光束就可以取代被遮掉的光束，使得mot依旧行得通，而可以在晶片表面正上方制造出冷原子云。 |
