Abstract
Analog physics has successfully tackled the problems of gauge theories, event horizons, Big Bang and Universe expansion, and many others. Here, we suggest a photonic model system for a “time machine” based on the paraxial beam approximation. We demonstrate how the closed timelike curves and the well-known grandfather paradox can be studied experimentally in this system. We show how Novikov's self-consistency principle is realized in quantum mechanics owing to Heisenberg's uncertainty principle.
- Received 20 November 2020
- Revised 25 January 2021
- Accepted 26 January 2021
DOI:https://doi.org/10.1103/PhysRevB.103.054303
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