20 citations · 39 across the 6 of their papers we have counts for
7 papers · 1 filter
Quench Spectroscopy for Two-Dimensional Spin Models with Power-Law Interactions
Katharina Brechtelsbauer, Hans Peter Büchler
In this paper, we analytically compute the quench dynamics of simple product states that evolve under a spin-1/2 XY-model with power-law interactions in a staggered magnetic field.…
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…
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…
Quantum Simulation of Spin-1 XXZ-Heisenberg Models and the Haldane Phase with Dysprosium
Katharina Brechtelsbauer, Johannes Mögerle, Hans Peter Büchler
Dysprosium atoms have proven to be a promising platform for quantum simulation due to their strong magnetic moment and high tunability of interactions. In this work, we propose Dys…
Spin-1 Haldane phase in a chain of Rydberg atoms
J. Mögerle, K. Brechtelsbauer, A. T. Gea-Caballero +7
We present a protocol to implement a spin-1 chain in Rydberg systems using three Rydberg states close to a Förster resonance. In addition to dipole-dipole interactions, strong van…
Quantum simulation with fully coherent dipole--dipole-interactions mediated by three-dimensional subwavelength atomic arrays
Katharina Brechtelsbauer, Daniel Malz
Quantum simulators employing cold atoms are among the most promising approaches to tackle quantum many-body problems. Nanophotonic structures are widely employed to engineer the ba…