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6 papers · 2 filters
Temporal distinguishability in Hong-Ou-Mandel interference: Generation and characterization of high-dimensional frequency entanglement
Yuanyuan Chen, Sebastian Ecker, Lixiang Chen +3
High-dimensional quantum entanglement is currently one of the most prolific fields in quantum information processing due to its high information capacity and error resilience. A ve…
Fidelity susceptibility near topological phase transitions in quantum walks
S. Panahiyan, W. Chen, S. Fritzsche
The notion of fidelity susceptibility, introduced within the context of quantum metric tensor, has been an important quantity to characterize the criticality near quantum phase tra…
Entangled Photon-Pair Sources based on three-wave mixing in bulk crystals
Ali Anwar, Chithrabhanu Perumangatt, Fabian Steinlechner +2
Entangled photon-pairs are a critical resource in quantum communication protocols ranging from quantum key distribution to teleportation. The current workhorse technique for produc…
Toward simulation of topological phenomenas with one-, two- and three-dimensional quantum walks
S. Panahiyan, S. Fritzsche
We study the simulation of the topological phases in three subsequent dimensions with quantum walks. We are mainly focused on the completion of a table for the protocols of the qua…
Enhancing quantum vacuum signatures with tailored laser beams
Felix Karbstein, Elena A. Mosman
We demonstrate that tailored laser beams provide a powerful means to make quantum vacuum signatures in strong electromagnetic fields accessible in experiment. Typical scenarios aim…
Controllable simulation of topological phases and edge states with quantum walk
S. Panahiyan, S. Fritzsche
We simulate various topological phenomena in condense matter, such as formation of different topological phases, boundary and edge states, through two types of quantum walk with st…