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Nanophysics Sep 10, 2021

A three-qubit entangled state has been realized in a fully controllable array of spin qubits in silicon

An all-RIKEN team has increased the number of silicon-based spin qubits that can be entangled from two to three, highlighting the potential of spin qubits for realizing multi-qubit quantum algorithms.

Nanophysics Sep 3, 2021

Researchers use gold film to enhance quantum sensing with qubits in a 2D material

Quantum sensing is being used to outpace modern sensing processes by applying quantum mechanics to design and engineering. These optimized processes will help beat the current limits in processes like studying magnetic materials ...

Condensed Matter Sep 2, 2021

Materials for superconducting qubits

The connection between microscopic material properties and qubit coherence are not well understood despite practical evidence that material imperfections present an obstacle to applications of superconducting qubits. In a ...

Optics & Photonics Aug 31, 2021

Physicists mix classical light with half a photon on a qubit

A Russian-U.K. research team has proposed a theoretical description for the new effect of quantum wave mixing involving classical and nonclassical states of microwave radiation. This effect, which previously lacked a rigorous ...

Nanophysics Aug 19, 2021

A peculiar state of matter in layers of semiconductors

Scientists around the world are developing new hardware for quantum computers, a new type of device that could accelerate drug design, financial modeling, and weather prediction. These computers rely on qubits, bits of matter ...

Quantum Physics Aug 13, 2021

Engineers make critical advance in quantum computer design

Quantum engineers from UNSW Sydney have removed a major obstacle that has stood in the way of quantum computers becoming a reality. They discovered a new technique they say will be capable of controlling millions of spin ...

Quantum Physics Aug 13, 2021

A complete platform for quantum computing

In a new groundbreaking work, researchers from DTU have now realized the complete platform for an optical quantum computer. The platform is universal and scalable, it all takes place at room temperature, and the technology ...

Quantum Physics Aug 11, 2021

Locations of Riemann zeros accurately measured

The Riemann hypothesis raised in 1859 is one of the six unsolved Millennium problems, and its proof greatly facilitate the understanding of the distribution laws of prime numbers. For a long time, there has been a growing ...

Quantum Physics Aug 9, 2021

Qubit in a crystal lattice of boron nitride is a suitable sensor

An artificially created spin defect (qubit) in a crystal lattice of boron nitride is suitable as a sensor enabling the measurement of different changes in its local environment. The qubit is a boron vacancy located in a two-dimensional ...

Quantum Physics Aug 5, 2021

New approach to information transfer reaches quantum speed limit

Even though quantum computers are a young technology and aren't yet ready for routine practical use, researchers have already been investigating the theoretical constraints that will bound quantum technologies. One of the ...

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