Quantum 10, 2233 (2026). https://doi.org/10.22331/q-2026-10-08-2233 Important nonlinear dynamics, such as those found in plasma and fluid systems, are typically hard to simulate on classical computers. Thus, if fault-tolerant quantum computers could efficiently solve such nonlinear […]
Quantum 10, 2232 (2026). https://doi.org/10.22331/q-2026-10-08-2232 A universal framework for the joint measurement of multiple localized observables in quantum field theory satisfying spacetime locality and compositionality is still lacking. We present an approach to the problem […]
Quantum 10, 2231 (2026). https://doi.org/10.22331/q-2026-10-08-2231 The incompatibility of quantum measurements, i.e. the fact that certain observable quantities cannot be measured jointly is widely regarded as a distinctive quantum feature with important implications for the foundations […]
Quantum 10, 2230 (2026). https://doi.org/10.22331/q-2026-10-08-2230 Quantifying the accuracy of logical gates is paramount in approximate error correction, where perfect implementations are often unachievable with the available set of physical operations. To this end, we introduce […]
Quantum 10, 2229 (2026). https://doi.org/10.22331/q-2026-10-07-2229 Measuring the state of quantum computers is a highly non-trivial task, with implications for virtually all quantum algorithms. A promising avenue is multi-copy schemes, where identical copies of a quantum […]
Quantum 10, 2228 (2026). https://doi.org/10.22331/q-2026-10-06-2228 Quantum graphs have been introduced by Duan, Severini, and Winter to describe the zero-error behaviour of quantum channels. Since then, quantum graph theory has become a field of study in […]
Quantum 10, 2227 (2026). https://doi.org/10.22331/q-2026-10-06-2227 We study the limitations of black-box amplification in the quantum complexity class ${sf QMA}$. Amplification is known to boost any inverse-polynomial gap between completeness and soundness to exponentially small error, […]
Quantum 10, 2226 (2026). https://doi.org/10.22331/q-2026-10-01-2226 We demonstrate that spinor Bose-Einstein condensates (BECs) can be operated as an analog simulator of the two-dimensional vibron model. This algebraic model describes bending vibrations of molecules and, in the […]
Quantum 10, 2225 (2026). https://doi.org/10.22331/q-2026-10-01-2225 We introduce new parallel algorithms for efficiently simulating stabilizer (Clifford) circuits on GPUs, with a focus on data-parallel tableau evolution and scalable handling of projective measurements. Our approach reformulates key […]
Quantum 10, 2224 (2026). https://doi.org/10.22331/q-2026-10-01-2224 We study the problem of $n$-fold rotationally symmetric bosonic state preparation, which is of great importance to bosonic quantum error correction, using a multiphoton interaction between an oscillator and an […]
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