Quantum technologies exploit entanglement to revolutionize computing, measurements, and
communications. This has stimulated the research in different areas of physics to engineer …

Time crystals are time-periodic self-organized structures postulated by Frank Wilczek in
2012. While the original concept was strongly criticized, it stimulated at the same time an …

We show that an ultracold atomic cloud bouncing on an oscillating mirror can reveal
spontaneous breaking of a discrete time-translation symmetry. In many-body simulations, we …

Symmetry-breaking quantum phase transitions play a key role in several condensed matter,
cosmology and nuclear physics theoretical models,,. Its observation in real systems is often …

Time crystals are quantum many-body systems which are able to self-organize their motion
in a periodic way in time. Discrete time crystals have been experimentally demonstrated in …

Between space crystals and amorphous materials there exists a third class of aperiodic
structures which lack translational symmetry but reveal long-range order. They are dubbed …

Discrete time crystals are related to nonequilibrium dynamics of periodically driven quantum
many-body systems where the discrete time-translation symmetry of the Hamiltonian is …

We consider a Bose-Einstein condensate in a double-well potential undergoing a dynamical
transition from the regime of Josephson oscillations to the regime of self-trap**. We …

Bell correlations are among the most exotic of the phenomena through which quantum
mechanics manifests itself. Their presence signals that the system may violate the postulates …

We propose a quantum speedup method for adiabatic generation of cat states in bosonic
Josephson junctions via shortcuts to adiabaticity. We apply approximated counter-diabatic …