4 papers
Quantum Boomerang Effect in Time-Crystalline Structures
Qi-wen Peng, Krzysztof Sacha, Chu-hui Fan
The quantum boomerang effect (QBE) is a unique dynamical signature of Anderson localization, characterized by a launched wavepacket that initially drifts but ultimately returns to…
Discrete Time Crystal Phase as a Resource for Quantum Enhanced Sensing
Rozhin Yousefjani, Krzysztof Sacha, Abolfazl Bayat
Discrete time crystals are a special phase of matter in which time translational symmetry is broken through a periodic driving pulse. Here, we first propose and characterize an eff…
Formation of Complex Discrete Time Crystals with Ultracold Atoms
Weronika Golletz, Krzysztof Sacha
We study discrete time crystal formation in a system driven periodically by an oscillating atomic mirror, consisting of two distinct ultracold atomic clouds in the presence of a gr…
Non-Hermitian Discrete Time Crystals
Rozhin Yousefjani, Angelo Carollo, Krzysztof Sacha +2
Discrete time crystals (DTC) exhibit a special non-equilibrium phase of matter in periodically driven many-body systems with spontaneous breaking of time translational symmetry. Th…