Quantum 9, 1644 (2025). https://doi.org/10.22331/q-2025-02-25-1644 Known mappings that encode fermionic modes into a bosonic qubit system are non-local transformations. In this paper we establish that this must necessarily be the case, if the locality graph […]
Quantum 9, 1643 (2025). https://doi.org/10.22331/q-2025-02-25-1643 Random access codes are a type of communication task that is widely used in quantum information science. The optimal average success probability that can be achieved through classical strategies is […]
Quantum 9, 1642 (2025). https://doi.org/10.22331/q-2025-02-25-1642 We present the Virtual Quantum Device (VQD) platform, a system based on the QuEST quantum emulator. Through the use of VQDs, non-expert users can emulate specific quantum computers with detailed […]
Quantum 9, 1641 (2025). https://doi.org/10.22331/q-2025-02-20-1641 Quantum signal processing (QSP) is a framework which was proven to unify and simplify a large number of known quantum algorithms, as well as discovering new ones. QSP allows one […]
Quantum 9, 1640 (2025). https://doi.org/10.22331/q-2025-02-20-1640 Quantum machine learning is arguably one of the most explored applications of near-term quantum devices. Much focus has been put on notions of variational quantum machine learning where $textit{parameterized quantum […]
Quantum 9, 1639 (2025). https://doi.org/10.22331/q-2025-02-19-1639 One of the most important quantities characterizing the microscopic properties of quantum systems are dynamical correlation functions. These correlations are obtained by time-evolving a perturbation of an eigenstate of the […]
Quantum 9, 1638 (2025). https://doi.org/10.22331/q-2025-02-19-1638 Quantum computing provides a novel avenue towards simulating dynamical phenomena, and, in particular, scattering processes relevant for exploring the structure of matter. However, preparing and evolving particle wave packets on […]
Quantum 9, 1637 (2025). https://doi.org/10.22331/q-2025-02-18-1637 The quantum prepare-and-measure scenario has been studied under various physical assumptions on the emitted states. Here, we first discuss how different assumptions are conceptually and formally related. We then identify […]
Quantum 9, 1636 (2025). https://doi.org/10.22331/q-2025-02-18-1636 Pebble games are popular models for analyzing time-space trade-offs. In particular, reversible pebble game strategies are frequently applied in quantum algorithms like Grover’s search to efficiently simulate classical computation on […]
Quantum 9, 1635 (2025). https://doi.org/10.22331/q-2025-02-18-1635 We present a cooling algorithm for ground state preparation of fermionic Hamiltonians. Our algorithm makes use of the Hamiltonian simulation of the considered system coupled to an ancillary fridge, which […]
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