Quantum 8, 1253 (2024). https://doi.org/10.22331/q-2024-02-13-1253 We propose a new design heuristic to tackle combinatorial optimisation problems, inspired by Hamiltonians for optimal state-transfer. The result is a rapid approximate optimisation algorithm. We provide numerical evidence of […]
Quantum 8, 1252 (2024). https://doi.org/10.22331/q-2024-02-13-1252 Emerging quantum hardware provides new possibilities for quantum simulation. While much of the research has focused on simulating closed quantum systems, the real-world quantum systems are mostly open. Therefore, it […]
Quantum 8, 1251 (2024). https://doi.org/10.22331/q-2024-02-12-1251 A general quantum circuit can be simulated classically in exponential time. If it has a planar layout, then a tensor-network contraction algorithm due to Markov and Shi has a runtime […]
Quantum 8, 1250 (2024). https://doi.org/10.22331/q-2024-02-12-1250 One of the primary objectives in the field of quantum state learning is to develop algorithms that are time-efficient for learning states generated from quantum circuits. Earlier investigations have demonstrated […]
Quantum 8, 1249 (2024). https://doi.org/10.22331/q-2024-02-12-1249 Traditional stabilizer codes operate over prime power local-dimensions. In this work we extend the stabilizer formalism using the local-dimension-invariant setting to import stabilizer codes from these standard local-dimensions to other […]
Quantum 8, 1248 (2024). https://doi.org/10.22331/q-2024-02-12-1248 In the absence of a complete theory of quantum gravity, phenomenological models built upon minimal assumptions have been explored for the analysis of possible quantum effects in gravitational systems. Implications […]
Quantum 8, 1247 (2024). https://doi.org/10.22331/q-2024-02-12-1247 We present $texttt{Qibolab}$, an open-source software library for quantum hardware control integrated with the $texttt{Qibo}$ quantum computing middleware framework. $texttt{Qibolab}$ provides the software layer required to automatically execute circuit-based algorithms […]
Quantum 8, 1246 (2024). https://doi.org/10.22331/q-2024-02-12-1246 Quantum instruments describe outcome probability as well as state change induced by measurement of a quantum system. Incompatibility of two instruments, i. e. the impossibility to realize them simultaneously on […]
Quantum 8, 1245 (2024). https://doi.org/10.22331/q-2024-02-08-1245 We present a generalized framework to adapt universal quantum state approximators, enabling them to satisfy rigorous normalization and autoregressive properties. We also introduce filters as analogues to convolutional layers in […]
Quantum 8, 1244 (2024). https://doi.org/10.22331/q-2024-02-08-1244 We present an analytical method to estimate pure quantum states using a minimum of three measurement bases in any finite-dimensional Hilbert space. This is optimal as two bases are insufficient […]
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