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Quantum Computers News
May 20, 2019

Top Headlines
 

With a quantum coprocessor in the cloud, physicists have opened the door to the simulation of previously unsolvable problems in chemistry, materials research or high-energy ... read more

A Step Towards Probabilistic Computing

Researchers demonstrate how skyrmions can be used for future computer concepts that are closer to how the human brain ... read more
Engineers have measured the accuracy of silicon two-qubit operations for the first time -- and their results confirm the ... read more

New Form of Laser for Sound

The optical laser has grown to a $10 billion global technology market since it was invented in 1960, and has led to Nobel prizes for Art Ashkin for developing optical tweezing and Gerard Mourou and ... read more
Latest Headlines
updated 9:21am EDT

Earlier Headlines
 

Atom Interaction Discovery Valuable for Future Quantum Technologies

By breaking with conventionality, physicists have opened up new research and technology opportunities involving the basic building block of the world -- atoms. Researchers put one atom inside each of ... read more

Atomic beams conjure fantasies of gigantic Space Force canons. But there are real tiny atomic beams that shoot out of newly engineered collimators, a kind of tiny silicon peashooter, that could land ... read more

Researchers have developed a nanocomponent that emits light particles carrying quantum information. Less than one-tenth the width of a human hair, the minuscule component makes it possible to scale ... read more

Through randomly selected measurements, physicists can determine the quantum entanglement of many-particle systems. With the newly developed method, quantum simulations can be extended to a larger ... read more

World-Record Quantum Computing

A world-record result in reducing errors in semiconductor electron 'spin qubits', a type of building block for quantum computers, has been ... read more

A localization phenomenon boosts the accuracy of solving quantum many-body problems with quantum computers which are otherwise challenging for conventional computers. This brings such digital quantum ... read more

Researchers have implemented a prototype quantum device that can generate and analyze a quantum superposition of possible futures. Using a novel quantum algorithm, the possible outcomes of a decision ... read more

By drilling holes into a thin two-dimensional sheet of hexagonal boron nitride with a gallium-focused ion beam, scientists have created artificial atoms that generate single photons, which work in ... read more

Infinite Number of Quantum Particles Gives Clues to Big-Picture Behavior at Large Scale

In quantum mechanics, measuring both the position and speed of a particle at the same time is not possible. To identify a particle's characteristics, physicists introduced the notion of ... read more

New Algorithm Optimizes Quantum Computing Problem-Solving

Researchers have developed an algorithm that enhances the ability of a quantum computer to more efficiently find the best solution for complicated ... read more

Scientists have proposed a new method for producing more robust Majorana fermions, a kind of quasiparticle that could act as stable bits of information in next-generation quantum ... read more

Record Efficiency for Perovskite-Based Light-Emitting Diodes

Efficient near-infrared (NIR) light-emitting diodes of perovskite have now been produced in a lab. The external quantum efficiency is 21.6%, which is a ... read more

Tiny nanoclusters of metal atoms -- such as gold and silver -- have properties which mean they can be used as semiconductors, a research team has discovered. The finding opens the door to a wide ... read more

Physicists have shown that shaking ultracold Bose-Einstein condensates can cause them to either divide into uniform segments or shatter into unpredictable splinters, depending on the frequency of the ... read more

A new method allows the quantum state of atomic 'qubits'--the basic unit of information in quantum computers -- to be measured with twenty times less error than was previously possible, ... read more

In a New Quantum Simulator, Light Behaves Like a Magnet

Physicists propose a new 'quantum simulator': a laser-based device that can be used to study a wide range of quantum systems. Studying it, the researchers have found that photons can behave ... read more

Computer Program Developed to Find 'Leakage' in Quantum Computers

A new computer program that spots when information in a quantum computer is escaping to unwanted states will give users of this promising technology the ability to check its reliability without any ... read more

Long-Distance Quantum Information Exchange -- Success at the Nanoscale

Researchers have realized the swap of electron spins between distant quantum dots. The discovery is a step towards applications of quantum information, as the dots leave enough room for delicate ... read more

Near-Perfect Performance in Low-Cost Semiconductors

Researchers redefine what it means for low-cost semiconductors, called quantum dots, to be near-perfect and find that quantum dots meet quality standards set by more expensive ... read more

Reversing the Flow of Time on a Quantum Computer

Researchers have developed an algorithm to simulate returning a particle briefly to the past. The results suggest new paths for exploring the backward flow of time in quantum systems. They also open ... read more

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