Many emerging quantum technologies demand precise engineering and control over
networks consisting of quantum mechanical degrees of freedom connected by propagating …

Excitation of a bound state in the continuum (BIC) through scattering is problematic since it is
by definition uncoupled. Here, we consider a type of dressed BIC and show that it can be …

We study the dynamics of chiral quantum networks consisting of nodes coupled by
unidirectional or asymmetric bidirectional quantum channels. In contrast to familiar photonic …

A particularly simple setup is introduced to study the influence of time-delayed coherent
feedback on the optical squeezing properties of the degenerate parametric amplifier. The …

Using the example of the Jaynes-Cummings model, we present a comparison between time-
delayed coherent feedback mediated by reservoirs with continuous-and discrete-mode …

A central goal of quantum optics is to generate large interactions between single photons so
that one photon can strongly modify the state of another one. In cavity optomechanics …

Classical microwave circuit theory is incapable of representing some phenomena at the
quantum level. To include quantum statistical effects, various theoretical treatments can be …

Weakly nonlinear degrees of freedom in dissipative quantum systems tend to localize near
manifolds of quasiclassical states. We present a family of analytical and computational …

We derive an extended version of the hierarchical equations of motion (HEOM) to compute
output physical properties of a bosonic environment, which is allowed to be initially prepared …

Broadly speaking, this thesis is about nonlinear optics, quantum mechanics, and computing.
More specifically, it covers four topics: Coherent LQG Control, Free-Carrier Oscillations …