2 papers
gr-qc2004
Can a circulating light beam produce a time machine?
Ken D. Olum, Allen Everett
In a recent paper, Mallett found a solution of the Einstein equations in which closed timelike curves (CTC's) are present in the empty space outside an infinitely long cylinder of…
gr-qc2004
Time travel paradoxes, path integrals, and the many worlds interpretation of quantum mechanics
Allen Everett
We consider two approaches to evading paradoxes in quantum mechanics with closed timelike curves (CTCs). In a model similar to Politzer's, assuming pure states and using path integ…