Quantum cooperativity is evident in light-matter platforms where quantum-emitter ensembles
are interfaced with confined optical modes and are coupled via the ubiquitous …

Fully inverted atoms placed at exactly the same location synchronize as they deexcite, and
light is emitted in a burst (known as “Dicke's superradiance”). We investigate the role of finite …

Large atomic ensembles coupled to a single optical resonator mode can be steered to
strongly enhanced or suppressed collective emission via phase controlled excitation …

Nanoscopic arrays of quantum emitters can feature highly sub-radiant collective excitations
with a lifetime exponentially growing with emitter number. Adding an absorptive impurity as …

An array of N closely spaced dipole coupled quantum emitters exhibits super-and
subradiance with characteristic tailorable spatial radiation patterns. Optimizing the emitter …

Regular arrays of two-level emitters at distances smaller than that of the transition
wavelength collectively scatter, absorb, and emit photons. The strong inter-particle dipole …

Inherent binary or collective interactions in ensembles of quantum emitters induce a spread
in the energy and lifetime of their eigenstates. While this typically causes fast decay and …

Using topology optimization, we inverse-design nanophotonic cavities enabling the
preparation of pure states of pairs and triples of quantum emitters. Our devices involve …

Cavity-embedded quantum emitters show strong modifications of free space radiation
properties such as an enhanced decay known as the Purcell effect. The central parameter is …

The transversely confined propagating modes of an optical fiber mediate virtually infinite
range energy exchanges among atoms placed within their field, which adds to the inherent …