Revisiting integer factorization using closed timelike curves
Quantum Information Processing
Closed timelike curves are relativistically valid objects allowing time travel to the past. Treating them as computational objects opens the door to a wide range of results which cannot be achieved using non-relativistic quantum mechanics. Recently, research in classical and quantum computation has focused on effectively harnessing the power of these curves. In particular, Brun (Found Phys Lett 16:245–253, 2003) has shown that CTCs can be utilized to efficiently solve problems like factoring and quantified satisfiability problem. In this paper, we find a flaw in Brun’s algorithm and propose a modified algorithm to circumvent the flaw.
Ghosh, Soumik; Adhikary, Arnab; and Paul, Goutam, "Revisiting integer factorization using closed timelike curves" (2019). Journal Articles. 1081.