Quantum 8, 1324 (2024). https://doi.org/10.22331/q-2024-04-30-1324 In distributed computing, a Byzantine fault is a condition where a component behaves inconsistently, showing different symptoms to different components of the system. Consensus among the correct components can be […]
Quantum 8, 1323 (2024). https://doi.org/10.22331/q-2024-04-30-1323 It was recently shown that a hidden variable model can be constructed for universal quantum computation with magic states on qubits. Here we show that this result can be extended, […]
Mathematicians like to generalize concepts into higher dimensions. Sometimes this is easy. If you want to efficiently pack squares in two dimensions, you arrange them like a checkerboard. To squeeze together three-dimensional cubes, you stack […]
Insider Brief QuEra has been awarded a 6.5 Billion JPY contract by Japan’s National Institute of Advanced Industrial Science and Technology. This computer will be installed on-premises alongside the NVIDIA-powered ABCI-Q supercomputer. The initiative hopes […]
Insider Brief Quantum Machines announced the integration of its advanced OPX quantum controller with Hamamatsu’s high-speed ORCA® -Quest camera. The combined solution provides ultra-fast camera readout capabilities for cold atoms and trapped-ions qubits. Officials from […]
Quantum 8, 1322 (2024). https://doi.org/10.22331/q-2024-04-30-1322 Pricing financial derivatives on quantum computers typically includes quantum arithmetic components which contribute heavily to the quantum resources required by the corresponding circuits. In this manuscript, we introduce a method […]
Quantum 8, 1321 (2024). https://doi.org/10.22331/q-2024-04-30-1321 We construct a new family of permutationally invariant codes that correct $t$ Pauli errors for any $tge 1$. We also show that codes in the new family correct quantum deletion […]
Executive Summary There was no spring break for the push to make France one of the global leaders in quantum technology. Paris-based Quantonation was one of the flag bearers for quantum investment this month. The […]
Quantum 8, 1320 (2024). https://doi.org/10.22331/q-2024-04-30-1320 We study the problem of approximating a quantum channel by one with as few Kraus operators as possible (in the sense that, for any input state, the output states of […]
Quantum 8, 1319 (2024). https://doi.org/10.22331/q-2024-04-30-1319 Estimating physical properties of quantum states from measurements is one of the most fundamental tasks in quantum science. In this work, we identify conditions on states under which it is […]
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