5 papers
Multiqubit Rydberg Gates for Quantum Error Correction
David F. Locher, Josias Old, Katharina Brechtelsbauer +4
Multiqubit gates that involve three or more qubits are usually thought to be of little significance for fault-tolerant quantum error correction because single gate faults can lead…
Measurement-free quantum error correction optimized for biased noise
Katharina Brechtelsbauer, Friederike Butt, David F. Locher +4
In this paper, we derive optimized measurement-free protocols for quantum error correction and the implementation of a universal gate set optimized for an error model that is noise…
Bosonic Quantum Error Correction with Neutral Atoms in Optical Dipole Traps
Leon H. Bohnmann, David F. Locher, Johannes Zeiher +1
Bosonic quantum error correction codes encode logical qubits in the Hilbert space of one or multiple harmonic oscillators. A prominent class of bosonic codes is that of Gottesman-K…
Measurement-free, scalable and fault-tolerant universal quantum computing
Friederike Butt, David F. Locher, Katharina Brechtelsbauer +2
Reliable execution of large-scale quantum algorithms requires robust underlying operations and this challenge is addressed by quantum error correction (QEC). Most modern QEC protoc…
Noise-aware variational eigensolvers: a dissipative route for lattice gauge theories
Jesús Cobos, David F. Locher, Alejandro Bermudez +2
We propose a novel variational ansatz for the ground-state preparation of the lattice gauge theory (LGT) in quantum simulators. It combines dissipative and unitary o…