5 papers
Hybrid Quantum Error Correction in Qubit Architectures
Lasse Bjørn Kristensen, Morten Kjaergaard, Christian Kraglund Andersen +1
Noise and errors are inevitable parts of any practical implementation of a quantum computer. As a result, large-scale quantum computation will require ways to detect and correct er…
An Artificial Spiking Quantum Neuron
Lasse Bjørn Kristensen, Matthias Degroote, Peter Wittek +2
Artificial spiking neural networks have found applications in areas where the temporal nature of activation offers an advantage, such as time series prediction and signal processin…
Quantum interference device for controlled two-qubit operations
Niels Jakob Søe Loft, Morten Kjaergaard, Lasse Bjørn Kristensen +5
Universal quantum computing relies on high-fidelity entangling operations. Here we demonstrate that four coupled qubits can operate as a quantum gate, where two qubits control the…
Realization of efficient quantum gates with a superconducting qubit-qutrit circuit
T. Bækkegaard, L. B. Kristensen, N. J. S. Loft +3
Building a quantum computer is a daunting challenge since it requires good control but also good isolation from the environment to minimize decoherence. It is therefore important t…
Quantum spin transistors in superconducting circuits
N. J. S. Loft, L. B. Kristensen, C. K. Andersen +1
Transistors play a vital role in classical computers, and their quantum mechanical counterparts could potentially be as important in quantum computers. Where a classical transistor…