When checking that solutions to certain problems are correct, it turns out, you can’t get around the inherent complexity of the quantum world.

Strong and weak symmetry reductions render optimal stabilizer decompositions tractable for multiqubit unitaries beyond previous limits.

Alt: a sulphur-crested cockatoo, looking very happy, showing its head

In December, thanks to the concerns raised in the preprint “Incorrect Citation Association for Articles in Online-Only Springer Nature Journals”, we identified approximately 150k incorrect citation li...

arXiv seeks its first CEO to champion open, free scientific discovery and guide the platform’s next chapter as an independent nonprofit.

Recently, I gave a couple of perspective talks on quantum advantage, one at the annual retreat of the CIQC and one at a recent KITP programme. I started off by polling the audience on who believed …

July 17-18, 2025 Ford Saal, Super C RWTH Aachen University

We provide a range of results on several groups of broad interest in quantum information science: the Clifford group, the orthogonal group, the unitary symplectic groups, and the matchgate group. For ...

Research and science are international; it is not for nothing that we speak of international specialist communities. Although a service such as arXiv is operated by an institution based in the USA, na...

The Peter Grünberg Institute for Quantum Control (PGI-8) at the Forschungszentrum Jülich specializes in novel optimization strategies for emerging quantum technologies. These emerging technologies aim...

Implementing the time evolution under a desired target Hamiltonian is critical for various applications in quantum science. Due to the exponential increase of parameters in the system size and due to ...

A randomized benchmarking method for passive bosonic operations provides characterization for continuous-variable systems that also estimates average particle loss and is robust to state preparation a...

Recent demonstrations of D-Wave's annealing-based quantum simulators have established new benchmarks for quantum computational advantage [arXiv:2403.00910]. However, the precise location of the classi...

Weltweit größte Fachbibliothek für Technik und Naturwissenschaften und Universitätsbibliothek der Leibniz Universität Hannover, Forschungseinrichtung in der Leibniz-Gemeinschaft

The Peter Grünberg Institute for Quantum Control (PGI-8) at the Forschungszentrum Jülich specializes in novel optimization strategies for emerging quantum technologies. These emerging technologies aim...

Expectation values of observables are routinely estimated using so-called classical shadows---the outcomes of randomized bases measurements on a repeatedly prepared quantum state. In order to trust th...

We propose a novel and efficient scheme to engineer arbitrary (local) many-body Hamiltonians by interleaving the free evolution of a fixed system Hamiltonian with layers of single-qubit Pauli or Cliff...