59 citations · 196 across the 10 of their papers we have counts for
10 papers
Quantum emulation of the transient dynamics in the multistate Landau-Zener model
Alexander Stehli, Jan David Brehm, Tim Wolz +4
Quantum simulation is one of the most promising near term applications of quantum computing. Especially, systems with a large Hilbert space are hard to solve for classical computer…
Slowing down light in a qubit metamaterial
Jan David Brehm, Richard Gebauer, Alexander Stehli +4
The rapid progress in quantum information processing leads to a rising demand for devices to control the propagation of electromagnetic wave pulses and to ultimately realize a univ…
Frequency fluctuations of ferromagnetic resonances at milliKelvin temperatures
Tim Wolz, Luke McLellan, Alexander Stehli +5
Unwanted fluctuations over time, in short, noise, are detrimental to device performance, especially for quantum coherent circuits. Recent efforts have demonstrated routes to utiliz…
Tunable Anderson Localization of Dark States
Jan David Brehm, Paul Pöpperl, Alexander D. Mirlin +4
Random scattering of photons in disordered one-dimensional solids gives rise to an exponential suppression of transmission, which is known as Anderson localization. Here, we experi…
Quantum Sensors for Microscopic Tunneling Systems
Alexander Bilmes, Serhii Volosheniuk, Jan D. Brehm +2
The anomalous low-temperature properties of glasses arise from intrinsic excitable entities, so-called tunneling Two-Level-Systems (TLS), whose microscopic nature has been baffling…
Coherent superconducting qubits from a subtractive junction fabrication process
Alexander Stehli, Jan David Brehm, Tim Wolz +6
Josephson tunnel junctions are the centerpiece of almost any superconducting electronic circuit, including qubits. Typically, the junctions for qubits are fabricated using shadow e…
Waveguide Bandgap Engineering with an Array of Superconducting Qubits
Jan David Brehm, Alexander N. Poddubny, Alexander Stehli +3
Waveguide quantum electrodynamics offers a wide range of possibilities to effectively engineer interactions between artificial atoms via a one-dimensional open waveguide. While the…
Probing the Tavis-Cummings level splitting with intermediate-scale superconducting circuits
Ping Yang, Jan David Brehm, Juha Leppäkangas +7
We demonstrate the local control of up to eight two-level systems interacting strongly with a microwave cavity. Following calibration, the frequency of each individual two-level sy…
Resonance inversion in a superconducting cavity coupled to artificial atoms and a microwave background
Juha Leppäkangas, Jan David Brehm, Ping Yang +4
We demonstrate how heating of an environment can invert the line shape of a driven cavity. We consider a superconducting coplanar cavity coupled to multiple artificial atoms. The m…
Transmission-line resonators for the study of individual two-level tunneling systems
Jan David Brehm, Alexander Bilmes, Georg Weiss +2
Parasitic two-level tunneling systems (TLS) emerge in amorphous dielectrics and constitute a serious nuisance for various microfabricated devices, where they act as a source of noi…