11 citations · 18 across the 9 of their papers we have counts for
9 papers
Modular fault-tolerant quantum computing on a non-CSS code
Robert Freund, Friederike Butt, César Benito +6
Modularization promises to break down the design and implementation complexity of large scale quantum processors into smaller manageable subtasks. In this approach, quantum channel…
Holographic quantum codes with trapped ions
Alex Steiner, Gerard Anglès Munné, Robert Freund +9
Holography is a central concept at the intersection of gravity, condensed matter theory, and quantum information, linking the interior bulk of a system to its boundary. A model rea…
Genuine Multipartite Entanglement between Logical Qubits via Cross-Code Lattice Surgery
Alex Steiner, Tomasz Andrzejewski, Phila Rembold +8
Universal quantum computers are expected to generate arbitrary complex quantum states of logical qubits encoded in many physical qubits. This capability hinges on a fault-tolerantl…
Demonstration of measurement-free universal fault-tolerant quantum computation
Friederike Butt, Ivan Pogorelov, Robert Freund +4
The ability to perform quantum error correction (QEC) and robust gate operations on encoded qubits opens the door to demonstrations of quantum algorithms. Contemporary QEC schemes…
Characterizing physical and logical errors in a transversal CNOT via cycle error reconstruction
Nicholas Fazio, Robert Freund, Debankan Sannamoth +7
The development of prototype quantum information processors has progressed to a stage where small instances of logical qubit systems perform better than the best of their physical…
Solving an Industrially Relevant Quantum Chemistry Problem on Quantum Hardware
Ludwig Nützel, Alexander Gresch, Lukas Hehn +10
Quantum chemical calculations are among the most promising applications for quantum computing. Implementations of dedicated quantum algorithms on available quantum hardware were so…
Experimental measurement and a physical interpretation of quantum shadow enumerators
Daniel Miller, Kyano Levi, Lukas Postler +18
Throughout its history, the theory of quantum error correction has heavily benefited from translating classical concepts into the quantum setting. In particular, classical notions…
Dynamical quantum maps for single-qubit gates under universal non-Markovian noise
J. M. Sánchez Velázquez, A. Steiner, R. Freund +4
Noise is both ubiquitous and generally deleterious in settings where precision is required. This is especially true in the quantum technology sector where system utility typically…
A self-referenced optical phase noise analyzer for quantum technologies
Robert Freund, Christian D. Marciniak, Thomas Monz
Second generation quantum technologies aim to outperform classical alternatives by utilizing engineered quantum systems. Maintaining the coherence required to enable any quantum ad…