Recent decades have witnessed great developments in the field of quantum simulation—
where synthetic systems are built and studied to gain insight into complicated, many-body …

Coupling a quantum many-body system to an external environment dramatically changes its
dynamics and offers novel possibilities not found in closed systems. Of special interest are …

Rydberg atoms with principal quantum number n⪢ 1 have exaggerated atomic properties
including dipole-dipole interactions that scale as n 4 and radiative lifetimes that scale as n 3 …

The ability to control and tune interactions in ultracold atomic gases has paved the way for
the realization of new phases of matter. So far, experiments have achieved a high degree of …

Simulating the real-time evolution of quantum spin systems far out of equilibrium poses a
major theoretical challenge, especially in more than one dimension. We experimentally …

We study coherent excitation hopping in a spin chain realized using highly excited
individually addressable Rydberg atoms. The dynamics are fully described in terms of an XY …

It is highly nontrivial to what extent we can deduce the relaxation behavior of a quantum
dissipative system from the spectral gap of the Liouvillian that governs the time evolution of …

By coupling a probe transition to a Rydberg state using electromagnetically induced
transparency (EIT) we map the strong dipole-dipole interactions onto an optical field. We …

We review experimental and theoretical tools to excite, study and understand strongly
interacting Rydberg gases. The focus lies on the excitation of dense ultracold atomic …

Dominating finite-range interactions in many-body systems can lead to intriguing self-
ordered phases of matter. For quantum magnets, Ising models with power-law interactions …