79 citations · 165 across the 5 of their papers we have counts for
3 papers · 1 filter
Eigenvalue Measurement of Topologically Protected Edge states in Split-Step Quantum Walks
Thomas Nitsche, Tobias Geib, Christoph Stahl +5
We study topological phenomena of quantum walks by implementing a novel protocol that extends the range of accessible properties to the eigenvalues of the walk operator. To this en…
Photonic quantum walks with four-dimensional coins
Lennart Lorz, Evan Meyer-Scott, Thomas Nitsche +5
The dimensionality of the internal coin space of discrete-time quantum walks has a strong impact on the complexity and richness of the dynamics of quantum walkers. While two-dimens…
Supersymmetric polarization anomaly in photonic discrete-time quantum walks
Sonja Barkhofen, Lennart Lorz, Thomas Nitsche +2
Quantum anomalies lead to finite expectation values that defy the apparent symmetries of a system. These anomalies are at the heart of topological effects in fundamental, electroni…