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Intel and QuTech deliver first industrially manufactured qubit

Engineers from Intel and scientists from QuTech have successfully produced the first industrially manufactured qubit, leveraging industrial manufacturing facilities to overcome scalability hurdles. The achievement boasts high uniformity, few defects, and unprecedented device yield, paving the way for practical quantum computation.

SourceDelft University of Technology·JournalNature Electronics·TypeExperimental study·DateMar 30, 2022

Evidence for exotic magnetic phase of matter

Researchers discovered a novel type of magnet, the antiferromagnetic excitonic insulator, which involves strong magnetic attraction between electrons in a layered material. The new state emerges when electrons form bound pairs with holes and trigger an antiferromagnetic alignment of adjacent electron spins.

SourceDOE/Brookhaven National Laboratory·JournalNature Communications·TypeExperimental study·DateFeb 22, 2022

Eccentric fractional skyrmion discovered in numerical simulations of ultra-cold superfluids

Scientists have discovered a new type of skyrmion with half-integer topological numbers in a ferromagnetic superfluid, challenging the current understanding of these phase defects. This discovery could lead to a major breakthrough in skyrmion research and its applications in particle physics and spintronics.

SourceOsaka City University·JournalPhysical Review A·TypeComputational simulation/modeling·DateFeb 15, 2022

New super-conductors could take data beyond zeroes and ones

Researchers have developed conducting systems that control electron spin and transmit a spin current over long distances without ultra-cold temperatures. This breakthrough enables the creation of new technologies for encoding and transmitting information at room temperature.

SourceDuke University·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateFeb 1, 2022

Harvard-led researchers document the presence of quantum spin liquids, a never-before-seen state of matter

Researchers at Harvard have successfully observed quantum spin liquids, a previously unseen state of matter that has been elusive for nearly 50 years. By manipulating ultracold atoms in a programmable quantum simulator, the team was able to create and study this exotic state, which holds promise for advancing quantum technologies.

SourceHarvard University·JournalScience·TypeExperimental study·DateDec 2, 2021

Green information technologies: Superconductivity meets spintronics

Researchers have created a material system exhibiting unusually long-range Josephson effect, enabling macroscopic quantum coherence and potential for spintronic applications. The discovery of 'triplet' superconductivity, where electrons with the same spin circulate, expands possibilities for low-power consumption devices.

SourceHelmholtz-Zentrum Berlin für Materialien und Energie·JournalNature Materials·TypeExperimental study·DateDec 2, 2021

Programmable interaction between quantum magnets

A team at Heidelberg University has successfully demonstrated a programmable control of spin interactions in isolated quantum systems. By adopting methods from nuclear magnetic resonance, the researchers used microwave pulses to modify the atomic spin and stall its reorientation. This breakthrough opens up new possibilities for Quantum...

SourceHeidelberg University·JournalScience·DateNov 29, 2021

Trapping spins with sound

Scientists demonstrate acoustic manipulation of electron spins in silicon carbide, enabling efficient control of magnetic quantum properties. The technique uses surface acoustic waves to tune the spin state, preventing information loss and paving the way for more affordable quantum technologies.

SourceHelmholtz-Zentrum Dresden-Rossendorf·JournalScience Advances·TypeExperimental study·DateNov 1, 2021

Three-channel Kondo effect discovered in cubic holmium compound

Researchers have discovered a three-channel Kondo effect in a cubic holmium compound using numerical methods, predicting an exotic quantum ground state and potential applications. The study found a residual entropy value at ultra-low temperatures, matching the predicted value by the three-channel Kondo effect.

SourceTokyo Metropolitan University·JournalJournal of the Physical Society of Japan·TypeComputational simulation/modeling·DateOct 30, 2021

Quantum materials cut closer than ever

Researchers at DTU have developed a new method for designing nanomaterials with unprecedented precision, allowing for the creation of compact and electrically tunable metalenses. This breakthrough enables the development of high-speed communication and biotechnology applications.

SourceTechnical University of Denmark·JournalACS Applied Materials & Interfaces·DateSep 13, 2021

Accessing high-spins in an artificial atom

Osaka University researchers demonstrate the readout of spin-polarized multielectron states composed of three or four electrons on a semiconductor quantum dot. This breakthrough may lead to quantum computers utilizing high-spin states, enabling faster and higher-capacity processing.

SourceOsaka University·JournalPhysical Review Letters·TypeExperimental study·DateAug 19, 2021

‘Missing jigsaw piece’: engineers make critical advance in quantum computer design

Quantum engineers at the University of New South Wales have discovered a new technique to control millions of spin qubits, a critical step towards building a practical quantum computer. This breakthrough uses a novel component called a dielectric resonator to focus microwave power and deliver uniform magnetic fields across the chip.

SourceUniversity of New South Wales·JournalScience Advances·TypeExperimental study·DateAug 13, 2021

Researchers propose a method of magnetizing a material without applying an external magnetic field

Scientists at São Paulo State University discovered that compressing paramagnetic salts adiabatically can produce magnetization. The process aligns the particles' spins, resulting in a constant total entropy and magnetized system. This method has potential applications in investigating other interacting systems.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalScientific Reports·TypeExperimental study·DateJul 29, 2021

Seeing with radio waves

Scientists from the University of Tsukuba used radio-frequency imaging to detect nitrogen-vacancy defects in diamond with improved resolution. The technique, called spin-locking, enhances accuracy and sensitivity by shielding electron spin from random noise.

SourceUniversity of Tsukuba·JournalJapanese Journal of Applied Physics·DateJul 9, 2021

Theory could accelerate push for spintronic devices

Rice University scientists develop a new theory that can help identify materials for advanced spintronic devices, which depend on electron spin states. The theory predicts heteropairs of two-dimensional bilayers that enable large Rashba splitting, making room-temperature spin transistors possible.

SourceRice University·JournalJournal of the American Chemical Society·DateFeb 25, 2021

Efficient valves for electron spins

Researchers at the University of Basel developed a new technique for efficient control and detection of electron spins in semiconductor devices. The spin valves can be controlled individually using nanomagnets, allowing for precise determination of electron spin orientation.

SourceUniversity of Basel·JournalCommunications Physics·DateAug 12, 2020

Solving a mystery in 126 dimensions

Researchers from UNSW Sydney have successfully analyzed the complex structure of benzene in 126 dimensions, shedding light on its stability and interactions. The discovery reveals unexpected electron behavior, where up-spin double-bonded electrons interact with down-spin single-bonded electrons.

SourceUniversity of New South Wales·JournalNature Communications·DateMar 5, 2020

The magnet that didn't exist

Scientists from QuTech have observed experimental signatures of Nagaoka ferromagnetism using an engineered quantum system. This phenomenon was predicted by Japanese physicist Yosuke Nagaoka in 1966 and has never been observed naturally. The researchers created a two-dimensional lattice of four quantum dots, which allowed them to trap t...