The strongest interaction between microscopic spins in magnetic materials is the exchange
interaction J ex. Therefore, ultrafast control of J ex holds the promise to control spins on …

Single spins in semiconductor quantum dots form a promising platform for solid-state
quantum information processing. The spin-up and spin-down states of a single electron or …

In recent years, the optical control of exchange interactions has emerged as an exciting new
direction in the study of the ultrafast optical control of magnetic order. Here we review recent …

We study cavity-mediated interactions that are generated in a two-dimensional two-band
Hubbard model coupled to an optical cavity, when it is driven in-gap by a strong laser …

We demonstrate that the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in graphene
can be strongly modified by a time-periodic driving field even in the weak drive regime. This …

We study the optically induced coupling between spins mediated by polaritons in a planar
microcavity. In the strong-coupling regime, the vacuum Rabi splitting introduces anisotropies …

We describe an interaction mechanism between electron spins in a vertically stacked double
quantum dot that can be used for controlled two-qubit operations. This interaction is …

We investigate coupling of localized spins in a semiconductor quantum dot embedded in a
microcavity. The lowest cavity mode and the quantum dot exciton are coupled and close in …

We analyze the optical quantum control of impurity spins in proximity to a quantum dot. A
laser pulse creates an exciton in the dot and controls the spins by indirect coupling. We …

The optically induced indirect exchange interaction between spins in two quantum dots is
investigated theoretically. We give a microscopic formulation of the interaction between the …