As Bill Gates tells the story, Warren Buffett once challenged him to a game of dice. Each would select one of four dice belonging to Buffett, and then they’d roll, with the higher number winning. […]
A class of nonvolatile memory devices, called MRAM, based on quantum magnetic materials, can offer a thousandfold performance beyond current state-of-the-art memory devices. The materials known as antiferromagnets were previously demonstrated to store stable memory […]
Quantum 7, 903 (2023). https://doi.org/10.22331/q-2023-01-19-903 Qubit memory that is entangled with photonic qubit is the building block for long distance quantum repeaters. Cavity enhanced and long lived spin wave photon entanglement has been demonstrated by […]
A permanent position is open at École Polytechnique, Paris, for a Computer Science Full Professor / Assistant Professor. Candidates are strongly encouraged to contact samuel.mimram@lix.polytechnique.fr, gilles.schaeffer@lix.polytechnique.fr and marc-olivier.renou@polytechnique.org as soon as possible, to discuss and […]
Quantum 7, 902 (2023). https://doi.org/10.22331/q-2023-01-19-902 We introduce a new set of quantum channels: resonant multilevel amplitude damping (ReMAD) channels. Among other instances, they can describe energy dissipation effects in multilevel atomic systems induced by the […]
Quantum 7, 901 (2023). https://doi.org/10.22331/q-2023-01-19-901 The fisherman caught a quantum fish. “Fisherman, please let me go”, begged the fish, “and I will grant you three wishes”. The fisherman agreed. The fish gave the fisherman a […]
Using a quantum simulator, researchers at the Max Planck Institute of Quantum Optics (MPQ) have observed pairs of charge carriers that may be responsible for the resistance-free transport of electric current in high-temperature superconductors. So […]
Quantum 7, 900 (2023). https://doi.org/10.22331/q-2023-01-19-900 The Kochen–Specker (KS) theorem reveals the nonclassicality of single quantum systems. In contrast, Bell’s theorem and entanglement concern the nonclassicality of composite quantum systems. Accordingly, unlike incompatibility, entanglement and Bell […]
Insider Brief Researchers at the Max Planck Institute of Quantum Optics (MPQ) relied on a quantum simulator to observe pairs of charge carriers. These charge carries may be responsible for the resistance-free transport of electric […]
Quantum 7, 899 (2023). https://doi.org/10.22331/q-2023-01-19-899 The variational quantum-classical algorithms are the most promising approach for achieving quantum advantage on near-term quantum simulators. Among these methods, the variational quantum eigensolver has attracted a lot of attention […]
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