39 citations · 48 across the 3 of their papers we have counts for
6 papers
Quantum limit cycles and synchronization from a measurement perspective
Tobias Nadolny, Christoph Bruder
Limit-cycle oscillators are the basic building blocks for synchronization; yet, the notion of a quantum limit cycle has remained unclear. Here, we study quantum limit cycles and sy…
Nonreciprocal interactions induce frequency shifts in superradiant lasers
Tobias Nadolny, Matteo Brunelli, Christoph Bruder
Superradiant lasers, which consist of incoherently driven atoms coupled to a lossy cavity, are a promising source of coherent light due to their stable frequency and superior narro…
Nonreciprocal Synchronization of Active Quantum Spins
Tobias Nadolny, Christoph Bruder, Matteo Brunelli
Active agents are capable of exerting nonreciprocal forces upon one another. For instance, one agent, say , may attract another agent while repels . These antagonisti…
Quantum synchronization through the interference blockade
Tobias Kehrer, Tobias Nadolny, Christoph Bruder
Synchronization manifests itself in oscillators adjusting their frequencies and phases with respect to an external signal or another oscillator. In the quantum case, new features a…
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…