Quantum 10, 1966 (2026). https://doi.org/10.22331/q-2026-01-16-1966 We demonstrate a fundamental relation between the structures of physical space and of quantum theory: the set of quantum correlations in a rotational prepare-and-measure scenario can be derived from covariance […]
Quantum 10, 1965 (2026). https://doi.org/10.22331/q-2026-01-14-1965 The geometric properties of quantum states are crucial for understanding many physical phenomena in quantum mechanics, condensed matter physics, and optics. The central object describing these properties is the quantum […]
Quantum 10, 1964 (2026). https://doi.org/10.22331/q-2026-01-14-1964 In the flavour of categorical quantum mechanics, we extend nonlocal games to allow quantum questions and answers, using quantum sets (special symmetric dagger Frobenius algebras) and the quantum functions of […]
Quantum 10, 1963 (2026). https://doi.org/10.22331/q-2026-01-14-1963 Conventionally in quantum sensing, the goal is to estimate one or more unknown parameters that are assumed to be deterministic – that is, they do not change between shots of […]
Quantum 10, 1962 (2026). https://doi.org/10.22331/q-2026-01-14-1962 We establish a unified statistical framework that underscores the crucial role statistical inference plays in Quantum Amplitude Estimation (QAE), a task essential to fields ranging from chemistry to finance and […]
Quantum 10, 1961 (2026). https://doi.org/10.22331/q-2026-01-08-1961 Self-testing identifies quantum states and correlations that exhibit nonlocality, distinguishing them, up to local transformations, from other quantum states. Due to their strong nonlocality, it is known that all graph […]
Quantum 10, 1960 (2026). https://doi.org/10.22331/q-2026-01-08-1960 We introduce a new framework for quantifying the complexity of quantum channels, grounded in a suitably chosen resource set. This class of convex functions is designed to analyze the complexity […]
Quantum 10, 1959 (2026). https://doi.org/10.22331/q-2026-01-07-1959 There has been a recent surge of interest within the field of quantum foundations regarding incorporating ideas from general relativity and quantum gravity. However, many quantum information tools remain agnostic […]
Quantum 9, 1958 (2025). https://doi.org/10.22331/q-2025-12-31-1958 Quantum networks are promising venues for quantum information processing. This motivates the study of the entanglement properties of the particular multipartite quantum states that underpin these structures. In particular, it […]
Quantum 9, 1957 (2025). https://doi.org/10.22331/q-2025-12-30-1957 Investigating the interplay of dualities, generalized symmetries, and topological defects beyond theoretical models is an important challenge in condensed matter physics and quantum materials. A simple model exhibiting this physics […]
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