Abstract A two-spin-1/2 Heisenberg XYZ model with Dzyaloshinsky–Moriya (DM) and
Kaplan–Shekhtman–Entin-Wohlman–Aharony (KSEA) interactions in the presence of an …

In circuit and cavity quantum electrodynamics devices where control qubits are dispersively
coupled to high-quality-factor cavities, characteristic functions of cavity states can be directly …

We present the variational separability verifier (VSV), which is a variational quantum
algorithm that determines the closest separable state (CSS) of an arbitrary quantum state …

The Schr\" odinger-Newton model is a semi-classical theory in which, in addition to mutual
attraction, massive quantum particles interact with their own gravitational fields. While there …

In a plethora of physical situations, one can distinguish a mediator—a system that couples
other, noninteracting, systems. Often, the mediator itself is not directly accessible to …

Correlations may arise in quantum systems through various means, of which the most
remarkable one is quantum entanglement. Additionally, there are systems that exhibit non …

In a plethora of physical situations one can distinguish a mediator—a system that couples
other, non-interacting systems. In this thesis, we analyze such scenarios from a quantum …