293 citations · 790 across the 12 of their papers we have counts for
12 papers
Graph-to-local limit for a multi-species nonlocal cross-interaction system
Antonio Esposito, Georg Heinze, Jan-Frederik Pietschmann +1
In this note we continue the study of nonlocal interaction dynamics on a sequence of infinite graphs, extending the results of [Esposito et. al 2023+] to an arbitrary number of spe…
Graph-to-local limit for the nonlocal interaction equation
Antonio Esposito, Georg Heinze, André Schlichting
We study a class of nonlocal partial differential equations presenting a tensor-mobility, in space, obtained asymptotically from nonlocal dynamics on localising infinite graphs. Ou…
Nonlocal cross-interaction systems on graphs: Energy landscape and dynamics
Georg Heinze, Jan-Frederik Pietschmann, Markus Schmidtchen
We explore the dynamical behavior and energetic properties of a model of two species that interact nonlocally on finite graphs. The authors recently introduced the model in the con…
Nonlocal cross-interaction systems on graphs: Nonquadratic Finslerian structure and nonlinear mobilities
Georg Heinze, Jan-Frederik Pietschmann, Markus Schmidtchen
We study the evolution of a system of two species with nonlinear mobility and nonlocal interactions on a graph whose vertices are given by an arbitrary, positive measure. To this e…
A cold atom temporally multiplexed quantum memory with cavity-enhanced noise suppression
Lukas Heller, Pau Farrera, Georg Heinze +1
Future quantum repeater architectures, capable of efficiently distributing information encoded in quantum states of light over large distances, will benefit from multiplexed photon…
Photonic quantum state transfer between a cold atomic gas and a crystal
Nicolas Maring, Pau Farrera, Kutlu Kutluer +3
Interfacing fundamentally different quantum systems is key to build future hybrid quantum networks. Such heterogeneous networks offer superior capabilities compared to their homoge…
Challenging local realism with human choices
The BIG Bell Test Collaboration, C. Abellán, A. Acín +105
A Bell test is a randomized trial that compares experimental observations against the philosophical worldview of local realism. A Bell test requires spatially distributed entanglem…
Storing single photons emitted by a quantum memory on a highly excited Rydberg state
Emanuele Distante, Pau Farrera, Auxiliadora Padrón-Brito +3
Strong interaction between two single photons is a long standing and important goal in quantum photonics. This would enable a new regime of nonlinear optics and unlock several appl…
Quantum frequency conversion of memory-compatible single photons from 606 nm to the telecom C-band
Nicolas Maring, Dario Lago-Rivera, Andreas Lenhard +2
We report on quantum frequency conversion of memory-compatible narrow-bandwidth photons at 606 nm to the telecom C-band at 1552nm. The 200ns long photons, compatible with P…
Non-classical correlations between a C-band telecom photon and a stored spin-wave
Pau Farrera, Nicolas Maring, Boris Albrecht +2
Future ground-based quantum information networks will likely use single photons transmitted through optical fibers to entangle individual network nodes. To extend communication dis…
Generation of single photons with highly tunable wave shape from a cold atomic quantum memory
Pau Farrera, Georg Heinze, Boris Albrecht +5
We report on a single photon source with highly tunable photon shape based on a cold ensemble of Rubidium atoms. We follow the DLCZ scheme to implement an emissive quantum memory,…
Controlled rephasing of single collective spin excitations in a cold atomic quantum memory
Boris Albrecht, Pau Farrera, Georg Heinze +2
We demonstrate active control of inhomogeneous dephasing and rephasing for single collective atomic spin excitations (spin-waves) created by spontaneous Raman scattering in a quant…