13 papers
Flexible quantum data bus for quantum networks
Julia Freund, Alexander Pirker, Wolfgang Dür
We consider multi-path routing of entanglement in quantum networks, where a pre-prepared multipartite entangled 2D cluster state serves as a resource to perform different tasks on…
Measurement-based quantum computing with qudit stabilizer states
Alena Romanova, Wolfgang Dür
We show how to perform measurement-based quantum computing on qudits (high-dimensional quantum systems) using alternative resource states beyond the cluster state. Estimating overh…
Long-ranged gates in quantum computation architectures with limited connectivity
Wolfgang Dür
We propose a quantum computation architecture based on geometries with nearest-neighbor interactions, including e.g. planar structures. We show how to efficiently split the role of…
Improved Quantum Sensing by Spectral Design
Paul Aigner, Wolfgang Dür
We investigate how unitary control can improve parameter estimation by designing the effective spectrum of the imprinting Hamiltonian. We show that, for commuting Hamiltonians, the…
Graph state extraction from two-dimensional cluster states
Julia Freund, Alexander Pirker, Lina Vandré +1
We propose schemes to extract arbitrary graph states from two-dimensional cluster states by locally manipulating the qubits solely via single-qubit measurements. We introduce graph…
Quantum Simulation of Noisy Quantum Networks
Ferran Riera-Sà bat, Jorge Miguel-Ramiro, Wolfgang Dür
Complex quantum networks are not only hard to establish, but also difficult to simulate due to the exponentially growing state space and noise-induced imperfections. In this work,…