A multi-institutional team of physicists is proposing an experiment to test whether gravity behaves as a quantum entity when measured. They published a description of their experiment in the journal Physical Review Letters and state […]
Insider Brief: Atlantic Quantum, in collaboration with MIT’s Kevin P. O’Brien, received a $1.8 million Phase II STTR grant from AFWERX to develop scalable superconducting quantum computers for the Department of the Air Force (DAF), […]
Quantum 8, 1525 (2024). https://doi.org/10.22331/q-2024-11-14-1525 The extension of the Rayleigh-Ritz variational principle to ensemble states $rho_{mathbf{w}}equivsum_k w_k |Psi_krangle langlePsi_k|$ with fixed weights $w_k$ lies ultimately at the heart of several recent methodological developments for targeting […]
A group of South Korean researchers has successfully developed an integrated quantum circuit chip using photons (light particles). It is a system capable of controlling eight photons using a photonic integrated-circuit chip. With this system, […]
Insider Brief: Researchers developed a quantum-inspired genetic algorithm that merges natural selection principles with quantum mechanics to optimize photonic layer designs, specifically for transparent radiative cooling systems. The QGA allows for faster and more efficient […]
For a wide variety of emerging quantum technologies, such as secure quantum communications and quantum computing, quantum entanglement is a prerequisite. Scientists at the Max-Planck-Institute for the Science of Light (MPL) have now demonstrated a […]
Quantum 8, 1524 (2024). https://doi.org/10.22331/q-2024-11-14-1524 Observational entropy captures both the intrinsic uncertainty of a thermodynamic state and the lack of knowledge due to coarse-graining. We demonstrate two interpretations of observational entropy, one as the statistical […]
Quantum 8, 1523 (2024). https://doi.org/10.22331/q-2024-11-14-1523 Quantum re-uploading models have been extensively investigated as a form of machine learning within the context of variational quantum algorithms. Their trainability and expressivity are not yet fully understood and […]
Insider Brief Quantinuum has introduced a Quantum Error Correction (QEC) decoder toolkit that enables real-time error correction, a critical step toward fault-tolerant quantum computing. The toolkit leverages a hybrid computing approach, using both quantum and […]
Quantinuum has announced the release of its Quantum Error Correction (QEC) decoder toolkit, a powerful new tool enabling real-time decoding and correction of error syndromes, marking a crucial advancement towards universal fault-tolerant quantum computing. This […]
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