3 papers
quant-ph2026
All-Optical Universal Control of Hyperfine Qudits in Trapped Neutral Atoms
Johannes K. Krondorfer, Matthias Diez, Andreas Kruckenhauser +1
Quantum systems with more than two levels so-called qudits offer increased computational density and reduced circuit complexity compared to qubit-based architectures, but a…
quant-ph2025
Ground-state reachability for variational quantum eigensolvers: a Rydberg-atom case study
Juhi Singh, Andreas Kruckenhauser, Rick van Bijnen +1
As quantum computing progresses, variational quantum eigensolvers (VQE) for ground-state preparation have become an attractive option in leveraging current quantum hardware. Howeve…
quant-ph2025
Dark spin-cats as biased qubits
Andreas Kruckenhauser, Ming Yuan, Han Zheng +8
We present a biased atomic qubit, universally implementable across all atomic platforms, encoded as a `spin-cat' within ground state Zeeman levels. The key characteristic of our co…