http://www.deepspace.ucsb.edu/wp-content/uploads/2015/04/A-Roadmap-to-Interstellar-Flight-15-h.pdf
Fascinating stuff, they even account for the effects of hitting interstellar dust during flight in the paper. Make it so... O0
I'm glad someone at NASA is thinking about big idea stuff.
Plenty of things can be tried so long as they don't involve human survivability. Good luck trying to figure out how to slow down an unpowered craft, though.
(I did appreciate the general thoroughness of the article in considering various operational factors.)
(And the importance of having someone proofread your damn paper so you don't look like you're stumbling around your own language... ::) )