511 citations · 4k across the 79 of their papers we have counts for
79 papers
Macroscopic quantum synchronization effects
Tobias Nadolny, Christoph Bruder
We theoretically describe macroscopic quantum synchronization effects occurring in a network of all-to-all coupled quantum limit-cycle oscillators. The coupling causes a transition…
Improving Transmon Qudit Measurement on IBM Quantum Hardware
Tobias Kehrer, Tobias Nadolny, Christoph Bruder
The Hilbert space of a physical qubit typically features more than two energy levels. Using states outside the qubit subspace can provide advantages in quantum computation. To bene…
Mapping out phase diagrams with generative classifiers
Julian Arnold, Frank Schäfer, Alan Edelman +1
One of the central tasks in many-body physics is the determination of phase diagrams. However, mapping out a phase diagram generally requires a great deal of human intuition and un…
Geometric Phase in Quantum Synchronization
Aaron Daniel, Christoph Bruder, Martin Koppenhöfer
We consider a quantum limit-cycle oscillator implemented in a spin system whose quantization axis is slowly rotated. Using a kinematic approach to define geometric phases in nonuni…
Optical coherent feedback control of a mechanical oscillator
Maryse Ernzer, Manel Bosch Aguilera, Matteo Brunelli +5
Feedback is a powerful and ubiquitous technique both in classical and quantum system control. Its standard implementation relies on measuring the state of a system, processing the…
Half-integer vs. integer effects in quantum synchronization of spin systems
Ryan Tan, Christoph Bruder, Martin Koppenhöfer
We study the quantum synchronization of a single spin driven by an external semiclassical signal for spin numbers larger than , the smallest system to host a quantum self-su…