Timeslice (en Inglés) - Rush Murphy

It's an untested prototype timeslice device. What could go wrong? Quin would never have considered becoming an assistant to a professor in the Physics lab if he wasn't desperate. Unfortunately, not even Neon, the neurally bonded AI living in Quin's head, could find better options. Along with his friends, Quin and Neon are about to take a crash course in time travel. Even the most innocuous tests carry hidden risks. Among those are temporal agents, a hostile future AI, and missing civilizations. The biggest danger of all may be a disaster of Quin's own making: a timeslice fracture