Tufts/CfA/MIT Cosmology Seminar, at Tufts:

                       Tuesday May 12, 1998
                             2:30 pm
                Note change of Room: Robinson 152
             Refreshments at 2:00 pm in Robinson 153

     "Faster-Than-Light Travel and the Weak Energy Condition"

                             Ken Olum
                         Tufts University

Abstract: 
I propose a definition for faster-than-light travel, roughly that following a particular path in spacetime allows one to travel more quickly than one could on nearby paths. With this definition, I prove that the existence of faster than light travel requires weak energy condition violation.