How do you isolate the quantum bits and how many bits does your computer currently have?

Question: How do you isolate the quantum bits and how many bits does your computer currently have?
- Keywords:
  bits,
  computer,
  subatomic,
  technology,
  work
Asked by kerenhb to Chris on 17 Jun 2013.
- Chris Mansell answered on 17 Jun 2013:
  
  My bits are atoms. The main way we isolate them is by putting them in a vacuum chair, which is a box with no air.
  
  We can make two trapping sites in the vacuum chamber. I haven’t been in the lab in a while (because I have lots of writing to do at the moment) but when things get working, we should have 1 atom (= 1 bit) in one trapping site and about 100 atoms (= about 100 bits) in the other trapping site. We don’t have individual control over the atoms in the trapping site with 100 atoms, which is perhaps an important thing to mention.

Question: How do you isolate the quantum bits and how many bits does your computer currently have?