The stabilization and manipulation of laser frequency by means of an external cavity are
nearly ubiquitously used in fundamental research and laser applications. While most of the …

Photonic time-varying systems have attracted significant attention owing to their rich physics
and potential opportunities for new and enhanced functionalities. In this context, the duality …

Time crystals are classified as discrete or continuous depending on whether they
spontaneously break discrete or continuous time translation symmetry. Although discrete …

We present the first experimental realization of a time crystal stabilized by dissipation. The
central signature in our implementation in a driven open atom-cavity system is a period …

Synchronization is a phenomenon where interacting particles lock their motion and display
non-trivial dynamics. Despite intense efforts studying synchronization in systems without …

Time crystals are an eagerly sought phase of matter with broken time-translation symmetry.
Quantum time crystals with discretely broken time-translation symmetry have been …

Quantum sensing is one of the arenas that exemplifies the superiority of quantum
technologies over their classical counterparts. Such superiority, however, can be diminished …

Dissipative Kerr solitons (DKSs) in integrated microresonators have enabled breakthroughs
in sensing, communication, and signal processing. So far, integrated DKS sources have …

Time crystals are many-body states that spontaneously break translation symmetry in time
the way that ordinary crystals do in space. While experimental observations have confirmed …

Frequency combs from continuous-wave-driven Kerr-nonlinear microresonators have
evolved into a key photonic technology with applications from optical communication to …