507 citations · 571 across the 20 of their papers we have counts for
6 papers · 2 filters
Lie algebra-assisted quantum simulation and quantum optimal control via high-order Magnus expansions
R. F. dos Santos, S. J. J. M. F. Kokkelmans
The evolution of a quantum system under time-dependent driving exhibits phenomena that are absent in its stationary counterpart. However, the high dimensionality and non-commutativ…
Strengthening the quantum data processing inequality for maximal -divergences via unraveling
Marcos Ruibal Ortigueira, Robert de Keijzer, Luke Visser +2
Maximal -divergences, among them the Belavkin--Staszewski relative entropy, are non-increasing under completely positive trace-preserving maps, which is the quantum data process…
Fidelity Relations in an Array of Neutral Atom Qubits -- Experimental Validation of Control Noise
Deon Janse van Rensburg, Robert de Keijzer, Rogier Venderbosch +5
Noise is a hindering factor for current-era quantum computers. In this study, we experimentally validate the theoretical relationships between amplitude noise of the control signal…
Consensus-based qubit configuration optimization for variational algorithms on neutral atom quantum systems
Robert de Keijzer, Luke Visser, Oliver Tse +1
In this work, we report an algorithm that is able to tailor qubit interactions for individual variational quantum algorithm problems. Here, the algorithm leverages the unique abili…
Existence and Characterisation of Bivariate Bicycle Codes
Jasper Johannes Postema, Servaas J. J. M. F. Kokkelmans
Encoding quantum information in a quantum error correction (QEC) code offers protection against decoherence and enhances the fidelity of qubits and gate operations. One of the fund…
Fidelity-Enhanced Variational Quantum Optimal Control
Robert de Keijzer, Luke Visser, Oliver Tse +1
Creating robust quantum operations is a major challenge in the current noisy intermediate-scale quantum computing era. Recently, the importance of noise-resilient control methods h…