58 citations · 139 across the 10 of their papers we have counts for
10 papers
Preventing the Breakdown of Tight-Binding Waveguide Optics by Löwdin Orthogonalization
Konrad Tschernig, Florian H. Huber, Janik Wolters +1
Many advancements in optics have relied on the tight-binding approximation, which simplifies the description and prediction of complex system behaviors. This approximation describe…
A digital twin of atomic ensemble quantum memories
Elizabeth Robertson, Benjamin Maaß, Konrad Tschernig +1
Accurate performance estimation of experimentally demonstrated quantum memories is key to understand the nuances in their deployment in photonic quantum networks. While several sof…
Localization effects from local phase shifts in the modulation of waveguide arrays
Konrad Tschernig, Armando Perez-Leija, Kurt Busch
Artificial gauge fields enable the intriguing possibility to manipulate the propagation of light as if it were under the influence of a magnetic field even though photons possess n…
Branching high-order exceptional points in non-hermitian optical systems
Konrad Tschernig, Kurt Busch, Demetrios N. Christodoulides +1
Exceptional points are complex-valued spectral singularities that lead to a host of intriguing features such as loss-induced transparency - a counterintuitive process in which an i…
Two-photon edge states in photonic topological insulators: topological protection versus degree of entanglement
Konrad Tschernig, Alvaro Jimenez-Galan, Demetrios N. Christodoulides +4
Topological insulators combine insulating properties in the bulk with scattering-free transport along edges, supporting dissipationless unidirectional energy and information flow e…
Direct observation of the particle exchange phase of photons
Konrad Tschernig, Chris Müller, Malte Smoor +5
Quantum theory stipulates that if two particles are identical in all physical aspects, the allowed states of the system are either symmetric or antisymmetric with respect to permut…
Multi-Photon Synthetic Lattices in Multi-Port Waveguide Arrays: Synthetic Atoms and Fock Graphs
Konrad Tschernig, Roberto de J. León-Montiel, Armando Perez-Leija +1
Activating transitions between internal states of physical systems has emerged as an appealing approach to create lattices and complex networks. In such a scheme, the internal stat…
Topological Protection in non-Hermitian Haldane Honeycomb Lattices
Pablo Reséndiz-Vázquez, Konrad Tschernig, Armando Perez-Leija +2
Topological phenomena in non-Hermitian systems have recently become a subject of great interest in the photonics and condensed-matter communities. In particular, the possibility of…
Exceptional points of any order in a single, lossy, waveguide beamsplitter by photon-number-resolved detection
Mario A. Quiroz-Juárez, Armando Perez-Leija, Konrad Tschernig +5
Exceptional points (EPs) are degeneracies of non-Hermitian operators where, in addition to the eigenvalues, corresponding eigenmodes become degenerate. Classical and quantum photon…
Multiphoton Discrete Fractional Fourier Dynamics in Waveguide Beam Splitters
Konrad Tschernig, Roberto de J. Leon-Montiel, Omar S. Magana-Loaiza +3
We demonstrate that when a waveguide beam splitter (BS) is excited by N indistinguishable photons, the arising multiphoton states evolve in a way as if they were coupled to each ot…