New type of optical quantum computers
Scientists at the Institute of Physics of the University of Tartu, Estonia have found a way to develop optical quantum computers of a new type, based on the discovery of Rare Earth Ions (REIs) that
Unusual quantum phenomena: Competition between magnetic orders
Researchers at the University of Bonn have used ultracold atoms to gain new insights into previously unknown quantum phenomena. They found out that the magnetic orders between two coupled thin films of atoms compete with
India collaborates with Amazon in Quantum Computing
The India’s Ministry of Electronics and Information Technology (MeitY) has announced a collaboration with Amazon Web Services (AWS) to develop a Quantum Computing Applications Lab in the country. The lab is meant to provide access
New state of matter in one-dimensional quantum gas
Researchers at Stanford University have developed a quantum version of Archimedes’ screw that, instead of water, hauls fragile collections of gas atoms to higher and higher energy states without collapsing. Most nonequilibrium, many-particle systems eventually
New Quantum Random Number Generation improvement
A research team from the University of Science and Technology of China has made security analysis and improvement of Source Independent Quantum Random Number Generators (SI-QRNGs) with imperfect devices. By studying the actual characteristics of
Quantum Personality of the Year – Nominee: Daniel Twitchen
Dr Daniel Twitchen, Chief Technologist of UK-based E6 (ElementSix), a De Beers company, is the fourth nominee of the ‘Quantum Personality of the Year 2020’. Daniel has 25 years’ experience developing CVD diamond synthesis for
A single-quantum-dot heat valve
A team of researchers at University Grenoble Alpes and Centre of Excellence Quantum Technology has developed a single-quantum-dot heat valve. They have demonstrated gate control of electronic heat flow in a thermally biased single-quantum-dot junction.
Unexpected quantum behavior in insulators
Physicists at Princeton University have observed an unexpected quantum behavior in an insulator made from a material called tungsten ditelluride. This phenomenon, known as quantum oscillation, is typically observed in metals rather than insulators, and
Connecting ansatz expressibility to gradient magnitudes and barren plateaus
Researchers at Los Alamos National Laboratory proved a fundamental theorem for Quantum Neural Networks (QNNs), or more generally, for any parameterized quantum circuit (often called an “ansatz”). Parameterized quantum circuits serve as ansätze for solving
Entangled error-protected qubits
Researchers from the University of Innsbruck have entangled two qubits distributed over several quantum objects and successfully transmitted their quantum properties. This marks an important milestone in the development of fault-tolerant quantum computers. For their