Wenzel Kersten
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View article: Self-induced superradiant masing
Self-induced superradiant masing Open
In cavity quantum electrodynamics and particularly superradiance, emitters are typically assumed to be independent, interacting only through light shared via a common mode. Although such photon-mediated interactions lead to a wide range of…
View article: Impurities in cryogenic solids: a new platform for hybrid quantum systems
Impurities in cryogenic solids: a new platform for hybrid quantum systems Open
Hybrid quantum systems offer a promising platform for studying quantum phenomena and developing applied technologies, benefiting from the individual strengths of their components. Here, we present a novel hybrid quantum platform composed o…
View article: Self-Induced Superradiant Masing
Self-Induced Superradiant Masing Open
In cavity quantum electrodynamics (cQED) and particularly superradiance, emitters are typically assumed to be independent, interacting only through light shared via a common mode. While such photon-mediated interactions lead to a rich spec…
View article: Triggered Superradiance and Spin Inversion Storage in a Hybrid Quantum System
Triggered Superradiance and Spin Inversion Storage in a Hybrid Quantum System Open
We study the superradiant emission of an inverted spin ensemble strongly coupled to a superconducting cavity. After fast inversion, we detune the spins from the cavity and store the inversion for tens of milliseconds, during which the rema…
View article: Quantum causality emerging in a delayed-choice quantum Cheshire Cat experiment with neutrons
Quantum causality emerging in a delayed-choice quantum Cheshire Cat experiment with neutrons Open
We report an experiment with neutrons in a silicon perfect crystal interferometer, that realizes a quantum Cheshire Cat in a delayed choice setting. In our setup the quantum Cheshire Cat is established by spatially separating the particle …
View article: Triggered Superradiance and Inversion Storage in a Hybrid Quantum System
Triggered Superradiance and Inversion Storage in a Hybrid Quantum System Open
We study the superradiant emission of an inverted spin ensemble strongly coupled to a superconducting cavity. After fast inversion, we detune the spins from the cavity and store the inversion for tens of milliseconds, during which the rema…
View article: Enhanced Molecular Spin-Photon Coupling at Superconducting Nanoconstrictions
Enhanced Molecular Spin-Photon Coupling at Superconducting Nanoconstrictions Open
We combine top-down and bottom-up nanolithography to optimize the coupling of small molecular spin ensembles to 1.4 GHz on-chip superconducting resonators. Nanoscopic constrictions, fabricated with a focused ion beam at the central transmi…
View article: 3D printed magnets for neutron spin manipulation
3D printed magnets for neutron spin manipulation Open
Devices for manipulation of the neutron spin are vital for experiments in neutron optics such as neutron interferometry. Here we introduce a new type of such devices which are based on a magnetic material that can be 3D printed in complex …