Fabian Elster

TL;DR: In this article, the authors implemented the scattering scheme proposed by Tarasinski et al. in a photonic time multiplexed quantum walk experiment to directly measure the topological invariants of quantum walks.

TL;DR: In this paper, a tunable coin operation allows to reach distinct topological phases, and accordingly observe topological phase transitions, and measure scattered reflection amplitudes which are directly related to the topological invariants.

TL;DR: Time-multiplexed finite quantum walks of variable size, the preparation of non-localized input states and their dynamical evolution are presented and a state transfer scheme for an arbitrary input state to two different output modes is implemented.

TL;DR: A quantum walk on a percolation graph is implemented leveraging a time-multiplexed quantum walk architecture to create broken links between the graph nodes to test the system by verifying non-Markovian signatures resulting from induced open system dynamics.

TL;DR: In this paper, the authors present time-multiplexed finite quantum walks of variable size, the preparation of non-localized input states and their dynamical evolution, and a state transfer scheme for an arbitrary input state to two different output modes.