goal is to study and optimize 1D, 2D, and 3D configurations of quantum emitters
such that their collective light emission is highly suppressed (sub-radiance),
so that together they could act as a quantum memory. At the same time, the
configuration should be such that the subradiant state can be well excited in
the near field. We explore optimal
dielectric environments for the emitters.
Background: A collection of atoms forms collective states and emit light
together (superradiance), sometimes much slower than individual atoms (subradiance).
Subradiant states are interesting because their long lifetimes may enable
encoding quantum information. These states cannot be excited by plane waves, so
one needs to explore other ways to encode information. A useful study for
scalar waves can be found in Ref. , and we will study light (vector waves) instead
emission can be very different, but often it is neglected that quantum emitters
can act collectively. There is a renewed interest in super- and subradiance [1,3]
because of upcoming quantum technologies and in particular the need to store
Project description: Reading literature, introduction to multiple-scattering theory,
analytical and numerical calculations, frequent discussions, attending group
meetings, writing of thesis.
: F. Schäfer et al., J.
Phys. B: At. Mol. Opt. Phys. 50, 235502 (2017).
 M. Wubs et al., Phys. Rev. A 70, 053823 (2004).
: A. Albrecht et al.,
The student has a background in optics and ideally quantum optics, and likes both theoretical and numerical studies. Can work independently and communicates well.