Quantum 8, 1564 (2024). https://doi.org/10.22331/q-2024-12-12-1564 Quantum energy teleportation (QET) is the phenomenon in which locally inaccessible energy is activated as extractable work through collaborative local operations and classical communication (LOCC) with an entangled partner. It […]
Quantum 8, 1563 (2024). https://doi.org/10.22331/q-2024-12-12-1563 Quantum computing has emerged as a promising avenue for achieving significant speedup, particularly in large-scale PDE simulations, compared to classical computing. One of the main quantum approaches involves utilizing Hamiltonian […]
Quantum 8, 1562 (2024). https://doi.org/10.22331/q-2024-12-12-1562 Floquet codes are an intriguing generalisation of stabiliser and subsystem codes, which can provide good fault-tolerant characteristics while benefiting from reduced connectivity requirements in hardware. A recent question of interest […]
Quantum 8, 1561 (2024). https://doi.org/10.22331/q-2024-12-11-1561 A spin (qubit) is in contact with a bosonic reservoir. The state of the reservoir contains a parameter $varepsilon$ interpolating between quantum and classical reservoir features. We derive the explicit […]
Quantum 8, 1560 (2024). https://doi.org/10.22331/q-2024-12-11-1560 Tensor networks provide succinct representations of quantum many-body states and are an important computational tool for strongly correlated quantum systems. Their expressive and computational power is characterized by an underlying […]
Quantum 8, 1559 (2024). https://doi.org/10.22331/q-2024-12-11-1559 In order to characterize and benchmark computational hardware, software, and algorithms, it is essential to have many problem instances on-hand. This is no less true for quantum computation, where a […]
Quantum 8, 1558 (2024). https://doi.org/10.22331/q-2024-12-10-1558 Quantum signal processing (QSP) represents a real scalar polynomial of degree $d$ using a product of unitary matrices of size $2times 2$, parameterized by $(d+1)$ real numbers called the phase […]
Quantum 8, 1557 (2024). https://doi.org/10.22331/q-2024-12-10-1557 Quantum state preparation plays a crucial role in several areas of quantum information science, in applications such as quantum simulation, quantum metrology and quantum computing. However, typically state preparation requires […]
Quantum 8, 1556 (2024). https://doi.org/10.22331/q-2024-12-10-1556 Error-mitigation techniques such as probabilistic error cancellation and zero-noise extrapolation benefit from accurate noise models. The sparse Pauli-Lindblad noise model is one of the most successful models for those applications. […]
Quantum 8, 1555 (2024). https://doi.org/10.22331/q-2024-12-10-1555 Quantum sensors offer control flexibility during estimation by allowing manipulation by the experimenter across various parameters. For each sensing platform, pinpointing the optimal controls to enhance the sensor’s precision remains […]
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