74 citations · 119 across the 8 of their papers we have counts for
8 papers
A high-fidelity method for a single-step -bit Toffoli gate in trapped ions
Juan Diego Arias Espinoza, Koen Groenland, Matteo Mazzanti +2
Conditional multi-qubit gates are a key component for elaborate quantum algorithms. In a recent work, Rasmussen et al. (Phys. Rev. A 101, 022308) proposed an efficient single-step…
Signal processing techniques for efficient compilation of controlled rotations in trapped ions
Koen Groenland, Freek Witteveen, Kareljan Schoutens +1
Quantum logic gates with many control qubits are essential in many quantum algorithms, but remain challenging to perform in current experiments. Trapped ion quantum computers nativ…
Single-step implementation of high fidelity -bit Toffoli gate
S. E. Rasmussen, K. Groenland, R. Gerritsma +2
The family of -bit Toffoli gates, with the two-bit Toffoli gate as the figurehead, are of great interest in quantum information as they can be used as universal gates and in qua…
Stimulated Raman adiabatic passage-like protocols for amplitude transfer generalize to many bipartite graphs
Koen Groenland, Carla Groenland, Reinier Kramer
Adiabatic passage techniques, used to drive a system from one quantum state into another, find widespread application in physics and chemistry. We focus on techniques to spatially…
Quantum gates by resonantly driving many-body eigenstates, with a focus on Polychronakos' model
Koen Groenland, Kareljan Schoutens
Accurate, nontrivial quantum operations on many qubits are experimentally challenging. As opposed to the standard approach of compiling larger unitaries into sequences of 2-qubit g…
Adiabatic state distribution using anti-ferromagnetic spin systems
Koen Groenland
Transporting quantum information is an important prerequisite for quantum computers. We study how this can be done in Heisenberg-coupled spin networks using adiabatic control over…
Many-body strategies for multi-qubit gates - quantum control through Krawtchouk chain dynamics
Koen Groenland, Kareljan Schoutens
We propose a strategy for engineering multi-qubit quantum gates. As a first step, it employs an eigengate to map states in the computational basis to eigenstates of a suitable many…
Efficient forward propagation of time-sequences in convolutional neural networks using Deep Shifting
Koen Groenland, Sander Bohte
When a Convolutional Neural Network is used for on-the-fly evaluation of continuously updating time-sequences, many redundant convolution operations are performed. We propose the m…