Scientists at the Max Planck Institute for the Science of Light (MPL) have developed a groundbreaking method for quantum entanglement that pairs photons with acoustic phonons through Brillouin scattering, marking a significant advance in quantum […]
Guarantees on the structure of experimental quantum networks
npj Quantum Information, Published online: 14 November 2024; doi:10.1038/s41534-024-00911-z Quantum networks connect and supply a large number of nodes with multi-party quantum resources for secure communication, networked quantum computing and distributed sensing. As these networks […]
Photonic Time Crystals That Amplify Light Exponentially
Scientists have achieved a breakthrough in creating photonic time crystals, groundbreaking materials that can exponentially amplify light. This development could revolutionize lasers, sensors, and communication technologies. The international research team’s work was published in Nature […]
Trainability barriers and opportunities in quantum generative modeling
npj Quantum Information, Published online: 13 November 2024; doi:10.1038/s41534-024-00902-0 Quantum generative models provide inherently efficient sampling strategies and thus show promise for achieving an advantage using quantum hardware. In this work, researchers have investigated the […]
Interferometry of quantum correlation functions to access quasiprobability distribution of work
npj Quantum Information, Published online: 11 November 2024; doi:10.1038/s41534-024-00913-x The Kirkwood-Dirac quasiprobability distribution, intimately connected with the quantum correlation function of two observables measured at distinct times, is becoming increasingly relevant for fundamental physics and […]
360 erbium ion Qubits in a crystal membrane
The rare-earth element erbium could play a key role in future quantum networks: Researchers from the Max Planck Institute of Quantum Optics (MPQ) and the Technical University of Munich (TUM), led by Andreas Reiserer, have […]
Lightcone bounds for quantum circuit mapping via uncomplexity
npj Quantum Information, Published online: 09 November 2024; doi:10.1038/s41534-024-00909-7 Lightcone bounds for quantum circuit mapping via uncomplexity Efficiently mapping quantum circuits onto hardware is integral for the quantum compilation process, wherein a circuit is modified […]
Unified linear response theory of quantum electronic circuits
npj Quantum Information, Published online: 09 November 2024; doi:10.1038/s41534-024-00907-9 Unified linear response theory of quantum electronic circuits Modeling the electrical response of multi-level quantum systems at finite frequency has been typically performed in the context […]
Finding the optimal probe state for multiparameter quantum metrology using conic programming
npj Quantum Information, Published online: 07 November 2024; doi:10.1038/s41534-024-00905-x Finding the optimal probe state for multiparameter quantum metrology using conic programming The ultimate precision in quantum sensing could be achieved using optimal quantum probe states. […]
Cavity-assisted resonance fluorescence from a nitrogen-vacancy center in diamond
npj Quantum Information, Published online: 07 November 2024; doi:10.1038/s41534-024-00915-9 Cavity-assisted resonance fluorescence from a nitrogen-vacancy center in diamond The nitrogen-vacancy center in diamond is an attractive resource for the generation of remote entangled states owing […]
