To build a universal quantum computer from fragile quantum components, effective implementation of Quantum Error Correction (QEC) is an essential requirement and a central challenge. Since qubits are intrinsically fragile, the most outstanding challenge of […]
An international team of researchers led by the University of Surrey has proven the existence of the fabled multi-photon Fano effect in an experiment.
Researchers from the University of Oxford and the Université libre de Bruxelles have developed a theory of causality in quantum theory, according to which cause-effect relations can sometimes form cycles. This theory offers a novel […]
Researchers at Heidelberg University‘s Physics Institute have recently observed the Pauli principle directly in a continuous system comprised of up to six particles. Their experiment could pave the way towards a better understanding of strongly interacting systems comprised of fermions.
An international team of scientists has invented the equivalent of body armour for extremely fragile quantum systems, which will make them robust enough to be used as the basis for a new generation of low-energy […]
A team of physicists from the University of Glasgow are the first in the world to find a way to use quantum-entangled photons to encode information in a hologram.
Today’s quantum computers contain up to several dozen memory and processing units, the so-called qubits. Researchers from MPQ have successfully interconnected two such qubits located in different labs to a distributed quantum computer. Their system […]
A team of researchers has investigated transmon qubits made from semiconductor nanowires with a fully surrounding superconducting shell.
Researchers at the US Army Research Laboratory have built a quantum sensor, which can sample the radio-frequency spectrum—from zero frequency up to 20 GHz—and detect AM and FM radio, Bluetooth, Wi-Fi and other communication signals. The Rydberg […]
The size of the alpha particle, the nucleus of the helium atom, has been measured more accurately than ever before. Results now indicate a size 1.67824(83) femtometers, which is 4.8 times more precise than previous […]
A team of Microsoft and University of Sydney researchers has developed a novel approach for controlling qubits.
Motivated by recent work showing that a quantum error correcting code can be generated by hybrid dynamics of unitaries and measurements, a team of researchers has studied the long time behavior of such systems. They […]
A team of researchers from DNRF center bigQ at DTU Physics have, in collaboration with the University of Sheffield, University of York and the Danish company Cryptomathic A/S, developed a Quantum Random Number Generator (QRNG) […]
Researchers at the University of Basel and Ruhr University Bochum have developed a source of single photons that can produce billions of these quantum particles per second. Each photon is created by exciting a single […]
Austrian AQT startup has just announced their compact ion-trap quantum computer prototype, demonstrating 24 qubit GHZ entanglement in a room-temperature setup housed in two 19-inch racks. This research work in cooperation with the University of Innsbruck, […]
Scientists have collaborated to develop a statistical testing methodology of the physical origin and the metrological aspects of the fundamental electron uncertainty.
SpinQ Gemini is a commercial desktop quantum computer designed and manufactured by SpinQ Technology. It is an integrated hardware-software system. The first generation product with two qubits was launched in January 2020. The hardware is […]
Emergence and control of complex behaviors in driven systems of interacting qubits with dissipation.
Generating and detecting Genuine Multipartite Entanglement (GME) of sizeable quantum states prepared on physical devices is an important benchmark for highlighting the progress of near-term quantum computers. A common approach to certify GME is to […]
Researchers at California Institute of Technology have explored how topology can endow special properties to a photonic platform in which superconducting qubits are embedded in a waveguide. The researchers showed that this configuration produces topological […]
Swiss researchers at the Paul Scherrer Institute (PSI) have put forward a detailed plan of how faster and better defined qubits can be created. The central elements are magnetic atoms from the class of so-called […]
Solid-state quantum computers require classical electronics to control and readout individual qubits and to enable fast classical data processing. Integrating both subsystems at deep cryogenic temperatures, where solid- state quantum processors operate best, may solve […]
Chinese researchers showed that to achieve the highest precisions for multiple parameters at the same time requires the saturation of multiple Heisenberg uncertainty relations simultaneously. Real-life applications like magnetometry or quantum gyroscope typically involve precise […]
The Korea Institute of Science and Technology (KIST) announced that the research team at the Center for Opto-Electronic Materials and Devices was able to generate laser pulses at a rate at least 10,000 times higher than the […]
A team of scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory, the University of Chicago and the University of California, developed a groundbreaking validation protocol for simulations of the atomic structure of the interface between a solid (a metal oxide) and liquid water.