A time crystal is a recently discovered dynamic state of matter where a periodic process spontaneously appears, similar to periodic arrangement of atoms in regular crystals. This periodic process lasts eternally in an ideal time crystal. This long-time coherence has proposed applications, for example, as a memory element in quantum computing. Unfortunately, time crystals are fragile when put in contact with environment. This project aims to overcome this limitation by engineering delicate interaction of a time crystal with surrounding media using an ultra-low-temperature platform provided by the superfluid phases of the 3He isotope. We will use this coupling to elucidate topologically nontrivial properties of the superfluid itself. We hope that the developed interaction protocols will enable applications of time crystals for quantum sensing and control in various systems.

2025

2029