npj Quantum Information, Published online: 08 November 2021; doi:10.1038/s41534-021-00495-y Beyond the standard quantum limit for parametric amplification of broadband signals
Researchers have discovered a novel way to manipulate defects in semiconductors. The study holds promising opportunities for novel forms of precision sensing, or the transfer of quantum information between physically separate qubits, as well as […]
Georgios Styliaris (MPQ):The Su-Schrieffer-Heeger (SSH) Hamiltonian is perhaps the most basic model encompassing the key concepts of a topological insulator.
Computer scientists have developed an extremely secure identity verification method based on the fundamental principle that information cannot travel faster than the speed of light. The breakthrough has the potential to greatly improve the security […]
Adrián Franco Rubio (MPQ):As one progresses in the study of theoretical physics, the concept of chirality shows up in a variety of different places, with the adjective “chiral” being attached to different entities in different […]
npj Quantum Information, Published online: 04 November 2021; doi:10.1038/s41534-021-00496-x Practical distributed quantum information processing with LOCCNet
Pavel Kos (MPQ):We study thermalisation and spectral properties of extended systems connected, through theirboundaries, to a thermalising Markovian bath.
Color centers are lattice defects in crystals that can capture one or more additional electrons. The spin of these electrons is very sensitive to external electric and magnetic fields — and to sound. Researchers are […]
Quantum physicists are reporting an international achievement for Denmark in the field of quantum technology. By simultaneously operating multiple spin qubits on the same quantum chip, they surmounted a key obstacle on the road to […]
Researchers take advantage of quantum entanglement to generate an incredibly large bandwidth using a thin-film nanophotonic device that could lead to advances in metrology, sensing and quantum networks for information processing and communications. Read More […]
Alba Cervera Lierta and Mario Krenn:Logic artificial intelligence (AI) is a subfield of AI where variables can take two defined arguments, True or False, and are arranged in clauses that follow the rules of formal […]
npj Quantum Information, Published online: 29 October 2021; doi:10.1038/s41534-021-00491-2 Effects of surface treatments on flux tunable transmon qubits
Anna Dawid-Łękowska (ICFO and University of Warsaw):Identifying phase transitions is one of the key problems in quantummany-body physics.
npj Quantum Information, Published online: 28 October 2021; doi:10.1038/s41534-021-00478-z Analyzing the performance of variational quantum factoring on a superconducting quantum processor
npj Quantum Information, Published online: 27 October 2021; doi:10.1038/s41534-021-00493-0 Gate-free state preparation for fast variational quantum eigensolver simulations
A team of physicists has demonstrated numerically a dynamical one-parameter scaling called ‘Family-Vicsek (FV) scaling,’ originally found in surface growth physics, in disordered quantum systems. Read More Quantum Computers News — ScienceDaily
By observing how strange particles called anyons dissipate heat, researchers have shown that they can probe the properties of these particles in systems that could be relevant for topological quantum computing. Read More Quantum Computers […]
Matteo Lostaglio (University of Amsterdam)How do we simulate a quantum computation when we (a) don’t have access to a quantum computer (b) have access to a noisy quantum computer (c) have access to a small […]
Scientists are probing topological insulators with circularly polarized light to reveal their many secrets. These exotic materials have potential for quantum computing and other technologies. They discovered that high harmonic generation produces a unique signature […]
The field of attoscience has been kickstarted by new advances in laser technology. Research began with studies of three particular processes. First, ‘above-threshold ionization’ (ATI), describing atoms which are ionized by more than the required […]
Zhi-Yuan Wei (MPQ):We study the adiabatic preparation of various paradigm states in SPT phases using the algorithm in Ref. [1].
npj Quantum Information, Published online: 22 October 2021; doi:10.1038/s41534-021-00492-1 State-independent test of quantum contextuality with either single photons or coherent light
Physicists have described in theoretical terms how to develop codes that cannot be broken by quantum computers — computing devices of the future. These codes rely on distributing single photons that share a quantum character […]
npj Quantum Information, Published online: 20 October 2021; doi:10.1038/s41534-021-00487-y Symmetry-resolved entanglement detection using partial transpose moments
npj Quantum Information, Published online: 20 October 2021; doi:10.1038/s41534-021-00488-x Idler-free multi-channel discrimination via multipartite probe states