I took a brief look and couldn't see anything crackpot about it (though I could have easily missed it) but regardless this is some random person's blog. All they are doing is talking about a few articles they have read, how does that add anything to the discussion? Aside from this nothing they say changes the objections I raised above.Well this one is optimistic about antimatter.
(Well i know it investigating fringe things, but from what i read i dont consider it a pseudo scientific site, although im not PF mentor, so sorry if i am wrong.)
I don't think this is true, positrons are not just sitting in the proton. Regardless all you are proposing is a system whereby the ship would then have to carry a particle accelerator to make the antimatter it is about to use (which would consume hideous amounts of energy).Is there any theoretical chance, that antimatter can be wrapped in neutral particles somehow, like a proton wraps in the positron?
See here http://en.wikipedia.org/wiki/Magnetic_sailAlso someone had the idea to build giant magnetic sails, and propel them with neutralized particle beams. He thoughts it is better than laser. Can particle beams act like ultra-short wavelength lasers?