Quantum 6, 623 (2022). https://doi.org/10.22331/q-2022-01-18-623 We investigate temporal correlations in the simplest measurement scenario, i.e., that of a physical system on which the same measurement is performed at different times, producing a sequence of dichotomic […]
Quantum 6, 622 (2022). https://doi.org/10.22331/q-2022-01-18-622 In recent years simulations of chemistry and condensed materials has emerged as one of the preeminent applications of quantum computing, offering an exponential speedup for the solution of the electronic […]
Quantum 6, 621 (2022). https://doi.org/10.22331/q-2022-01-11-621 The study of causal relations has recently been applied to the quantum realm, leading to the discovery that not all physical processes have a definite causal structure. While indefinite causal […]
Quantum computing is expected to revolutionize a broad swathe of industries. But as the technology edges closer to commercialization, what will the earliest use cases be? Quantum computing is still a long way from going […]
Quantum 6, 620 (2022). https://doi.org/10.22331/q-2022-01-05-620 We introduce new methods and tools to study and characterise classical and quantum correlations emerging from prepare-and-measure experiments with informationally restricted communication. We consider the most general kind of informationally […]
Quantum 6, 619 (2022). https://doi.org/10.22331/q-2022-01-05-619 A set of multipartite orthogonal product states is locally irreducible, if it is not possible to eliminate one or more states from the set by orthogonality-preserving local measurements. An effective […]
Quantum 6, 618 (2022). https://doi.org/10.22331/q-2022-01-05-618 Mapping the decoding of quantum error correcting (QEC) codes to classical disordered statistical mechanics models allows one to determine critical error thresholds of QEC codes under phenomenological noise models. Here, […]
Quantum 6, 617 (2022). https://doi.org/10.22331/q-2022-01-04-617 A full quantum mechanical treatment of open quantum systems via a Master equation is often limited by the size of the underlying Hilbert space. As an alternative, the dynamics can […]
Quantum 6, 616 (2022). https://doi.org/10.22331/q-2022-01-03-616 A finite-dimensional quantum system is coupled to a bath of oscillators in thermal equilibrium at temperature $T>0$. We show that for fixed, small values of the coupling constant $lambda$, the […]
Quantum 6, 615 (2022). https://doi.org/10.22331/q-2022-01-03-615 We develop a framework to analyze the dynamics of a finite-dimensional quantum system $rm S$ in contact with a reservoir $rm R$. The full, interacting $rm SR$ dynamics is unitary. […]
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