Quantum computation scheme paper

Describe a scheme for the practical realization of the quantum computation. The scheme must be different from your research project topic. You can select different scheme if your research project is on the subject of practical realization of quantum computing. Include the following:

1) Proposals for the realization of all five DiVincenzo criteria for quantum computation and the current experimental status for each of those criteria.
2) Separately discuss the scalability of the approach.
3) What are the main advantages of the scheme?
4) What are the main difficulties of the practical realization of this scheme?

Note: use material beyond lecture notes (textbook, quantum computation roadmap, scientific articles, web sites), include all references.
The paper has contain a minimum of 1000 words. Hand-written material will not be accepted. Written or oral critiques will be provided by the instructor. Students are required to revise and resubmit their critiqued paper.

Quantum computation scheme paper is due on April 30
Revised quantum computation scheme paper is due on May 5