Quantum 10, 2022 (2026). https://doi.org/10.22331/q-2026-03-10-2022 Tensor networks like matrix product states (MPSs) and matrix product operators (MPOs) are powerful tools for representing exponentially large states and operators, with applications in quantum many-body physics, machine learning, […]
Quantum 10, 2021 (2026). https://doi.org/10.22331/q-2026-03-10-2021 Nonlocal quantum realizations, certified by the violation of a Bell inequality, are core resources for device-independent quantum information processing. Although proof-of-principle experiments demonstrating device-independent quantum information processing have already been […]
Quantum 10, 2020 (2026). https://doi.org/10.22331/q-2026-03-10-2020 The heralded exact one-way distillable secret key is equal to the largest expected rate at which perfect secret key bits can be probabilistically distilled from a bipartite state by means […]
Quantum 10, 2019 (2026). https://doi.org/10.22331/q-2026-03-10-2019 We introduce a systematic method for constructing polytope approximations to the quantum set in a variety of device-independent quantum random number generation (DI-QRNG) protocols. Our approach relies on two general-purpose […]
Quantum 10, 2018 (2026). https://doi.org/10.22331/q-2026-03-10-2018 We investigate the performance of an adiabatic evolution protocol when initialized from a Gibbs state at finite temperature. Specifically, we identify the diagonality of the final state in the energy […]
Quantum 10, 2017 (2026). https://doi.org/10.22331/q-2026-03-10-2017 Non-stabilizerness, alongside entanglement, is a crucial ingredient for fault-tolerant quantum computation and achieving a genuine quantum advantage. Despite recent progress, a complete understanding of the generation and thermalization of non-stabilizerness […]
Quantum 10, 2016 (2026). https://doi.org/10.22331/q-2026-03-09-2016 Quantum state discrimination plays a central role in quantum information and communication. For the discrimination of optical quantum states, the two most widely adopted measurement techniques are photon detection, which […]
Quantum 10, 2015 (2026). https://doi.org/10.22331/q-2026-03-09-2015 Finding a set of empirical criteria fulfilled by any theory satisfying the generalized notion of noncontextuality is a challenging task of both operational and foundational importance. This work presents a […]
Quantum 10, 2014 (2026). https://doi.org/10.22331/q-2026-03-09-2014 We use Pauli Path simulation to variationally obtain parametrized circuits for preparing ground states of various quantum many-body Hamiltonians. These include the quantum Ising model in one dimension, in two […]
Quantum 10, 2013 (2026). https://doi.org/10.22331/q-2026-03-09-2013 We provide a new characterisation of quantum supermaps in terms of an axiom that refers only to sequential and parallel composition. Consequently, we generalize quantum supermaps to arbitrary monoidal categories […]
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