Closed timelike curves: theory, experiments, and paradox resolution

Multiple developments: an optical analogue proposal to test Hawking's Chronology Protection Conjecture; revived interest in Gott's cosmic string time machine due to NANOGrav observations; a new rigorous analysis of CTCs in Gödel-type universes showing entropy reset eliminates paradoxes via Wigner's theorem; a new theoretical study showing quantum noise can enhance efficiency of backward communication via CTCs; and a recent article connecting decoherence (quantum noise) with CTCs, offering a new angle on quantum behavior in CTC spacetimes. These bridge theory and experiment in time travel physics.