4 ms·
> The result relies on tachyons having an imaginary mass, or a negative mass squared. Perhaps these two were mixed up?
by SeanLuke 12y ago
> The result relies on tachyons having an imaginary mass, or a negative mass squared.
Perhaps these two were mixed up?
- mp8 12y agoI suspect it's meant to be negative (mass squared) rather than (negative mass) squared.
- tjradcliffe 12y agoCorrect. Tachyons appear in dynamical equations with imaginary masses, which, when squared, give negative "squared masses".