Quantum 5, 576 (2021). https://doi.org/10.22331/q-2021-11-11-576 We analyse the problem of transmitting a number of unknown quantum states or one composite system in one go. We derive a lower bound on the performance of such process, […]
Quantum 5, 576 (2021). https://doi.org/10.22331/q-2021-11-11-576 We analyse the problem of transmitting a number of unknown quantum states or one composite system in one go. We derive a lower bound on the performance of such process, […]
Quantum 5, 575 (2021). https://doi.org/10.22331/q-2021-11-11-575 Reasoning about Bell nonlocality from the correlations observed in post-selected data is always a matter of concern. This is because conditioning on the outcomes is a source of non-causal correlations, […]
Quantum 5, 574 (2021). https://doi.org/10.22331/q-2021-11-10-574 Quantum computers can produce a quantum encoding of the solution of a system of differential equations exponentially faster than a classical algorithm can produce an explicit description. However, while high-precision […]
Quantum 5, 573 (2021). https://doi.org/10.22331/q-2021-11-08-573 Quantum algorithms for solving the Quantum Linear System (QLS) problem are among the most investigated quantum algorithms of recent times, with potential applications including the solution of computationally intractable differential […]
Quantum 5, 572 (2021). https://doi.org/10.22331/q-2021-11-08-572 Variational quantum algorithms (VQA) are considered as some of the most promising methods to determine the properties of complex strongly correlated quantum many-body systems, especially from the perspective of devices […]
Quantum 5, 571 (2021). https://doi.org/10.22331/q-2021-11-08-571 The problem of objectivity, i.e. how to explain on quantum grounds the objective character of the macroscopic world, is one of the aspects of the celebrated quantum-to-classical transition. Initiated by […]
Quantum 5, 570 (2021). https://doi.org/10.22331/q-2021-11-02-570 Inspired by recent developments in the control and manipulation of quantum dot nuclear spins, which allow for the transfer of an electron spin state to the surrounding nuclear-spin ensemble for […]
Quantum 5, 569 (2021). https://doi.org/10.22331/q-2021-10-27-569 Sharing correlated random variables is a resource for a number of information theoretic tasks such as privacy amplification, simultaneous message passing, secret sharing and many more. In this article, we […]
Quantum 5, 568 (2021). https://doi.org/10.22331/q-2021-10-27-568 The fermionic quantum emulator (FQE) is a collection of protocols for emulating quantum dynamics of fermions efficiently taking advantage of common symmetries present in chemical, materials, and condensed-matter systems. The […]
Quantum 5, 567 (2021). https://doi.org/10.22331/q-2021-10-20-567 The Quantum Fisher Information matrix (QFIM) is a central metric in promising algorithms, such as Quantum Natural Gradient Descent and Variational Quantum Imaginary Time Evolution. Computing the full QFIM for […]
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