PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

A new qubit platform is created atom by atom

A new qubit platform is created atom by atom
2023-10-05
(Press-News.org) Seoul, Korea - Researchers at the IBS Center for Quantum Nanoscience (QNS) at Ewha Womans University have accomplished a groundbreaking step forward in quantum information science. In partnership with teams from Japan, Spain, and the US, they created a novel electron-spin qubit platform, assembled atom-by-atom on a surface. This breakthrough was published in the journal Science on 2023/10/06.

Unlike previous atomic quantum devices on surfaces where only a single qubit could be controlled, the researchers at QNS successfully demonstrated the ability to control multiple qubits simultaneously, enabling the application of single-, two-, and three-qubit gates.

Qubits, the fundamental units of quantum information, are key to quantum applications such as quantum computing, sensing, and communication. PHARK Soo-hyon, one of the QNS principal investigators, highlights the significance of this project. "To date, scientists have only been able to create and control a single qubit on a surface, making this a major step forward towards multi-qubit systems," he stated.

Led by BAE Yujeong, PHARK Soo-hyon, and director Andreas HEINRICH, QNS developed this novel platform, which consists of individual magnetic atoms placed on a pristine surface of a thin insulator. These atoms can be precisely positioned using the tip of a scanning tunneling microscope (STM) and manipulated with the assistance of electron spin resonance (ESR-STM). This atomic-scale control has allowed researchers to manipulate quantum states coherently. They also established the possibility of controlling remote qubits, opening the path to scaling up to tens or hundreds of qubits in a defect-free environment.

BAE Yujeong pointed out, “It is truly amazing that we can now control the quantum states of multiple individual atoms on surfaces at the same time”. The atomic-scale precision of this platform allows for the remote manipulation of the atoms to perform qubit operations individually, without moving the tip of the STM.

This research marks a significant departure from other qubit platforms, such as photonic devices, ion and atom traps, and superconducting devices. One of the unique benefits of this surface-based electron-spin approach is the myriad of available spin species and the vast variety of two-dimensional geometries that can be precisely assembled.

Looking forward, the researchers anticipate quantum sensing, computation, and simulation protocols using these precisely assembled atomic architectures. Altogether, the work by the QNS researchers is expected to usher in a new era of atomic-scale control in quantum information science, cementing Korea’s position as a global leader in the field.

END

[Attachments] See images for this press release:
A new qubit platform is created atom by atom A new qubit platform is created atom by atom 2

ELSE PRESS RELEASES FROM THIS DATE:

Brain is ‘rewired’ during pregnancy to prepare for motherhood

2023-10-05
Francis Crick Institute press release Under strict embargo: 19:00hrs BST Thursday 5 October 2023 Peer reviewed Experimental study Animals   Researchers at the Francis Crick Institute have shown that pregnancy hormones ‘rewire’ the brain to prepare mice for motherhood. Their findings, published today in Science, show that both oestrogen and progesterone act on a small population of neurons in the brain to switch on parental behaviour even before offspring arrive. These adaptations resulted in stronger and more selective responses to pups. It is well known that while virgin female rodents do not show much interaction with pups, ...

Vulnerability to different COVID-19 mutations depends on previous infections and vaccination, study suggests

2023-10-05
A person’s immune response to variants of SARS-CoV-2, the virus that causes COVID-19, depends on their previous exposure – and differences in the focus of immune responses will help scientists understand how to optimise vaccines in the future to provide broad protection. A new study has found that people differ in how vulnerable they are to different mutations in emerging variants of SARS-CoV-2. This is because the variant of SARS-CoV-2 a person was first exposed to determines how well their immune system responds to different parts of the virus, and how protected they are against other variants. It also means that the same COVID-19 ...

The end of genes: routine test reveals unique divergence in genetic code

2023-10-05
Scientists testing a new method of sequencing single cells have unexpectedly changed our understanding of the rules of genetics.  The genome of a protist has revealed a seemingly unique divergence in the DNA code signalling the end of a gene, suggesting the need for further research to better understand this group of diverse organisms. Dr Jamie McGowan, a postdoctoral scientist at the Earlham Institute, analysed the genome sequence of a microscopic organism - a protist – isolated from a freshwater pond at Oxford University Parks. The work was intended to test a DNA ...

Conscience launches to tackle drug discovery and development for diseases sidelined by pharmaceutical science

2023-10-05
TORONTO (5 October 2023) – Conscience, a game-changing non-profit venture focused on enabling drug discoveries for diseases that have received limited attention from the pharmaceutical industry, launched today with pioneering support from the Canadian government.   With CA$105.7 million in funding, including $49 million from the Canadian government and the engagement of industry, academia, government and patient advocacy groups, Conscience seeks to lead global drug discovery and development for emerging, rare or complex ...

Isis presents a special bibliographic issue on the history of pandemics

2023-10-05
In 1913, historian of science George Sarton created what has become the Isis Current Bibliography of the History of Science (IsisCB). For the last 110 years, the journal Isis has included a comprehensive survey of the recent work in the history of science and allied fields, first in each issue and later as a full yearly supplement. Now the basis of a free online search tool called IsisCB Explore, the IsisCB continues to serve as an indispensable reference for scholars and students. “Bibliographic ...

Plot thickens in hunt for ninth planet

Plot thickens in hunt for ninth planet
2023-10-05
CLEVELAND—A pair of theoretical physicists are reporting that the same observations inspiring the hunt for a ninth planet might instead be evidence within the solar system of a modified law of gravity originally developed to understand the rotation of galaxies. Researchers Harsh Mathur,  a professor of physics at Case Western Reserve University, and Katherine Brown, an associate professor of physics at Hamilton College, made the assertion after studying the effect the Milky Way galaxy would have on objects in the outer solar system—if the laws of gravity were governed by a theory known as Modified ...

Factors associated with marijuana use among high-risk college students

2023-10-05
The past decade has seen a significant increase in marijuana use among U.S. college students. This increase has coincided with notable changes in national and local cannabis laws and policies, and perceptions of the associated drug’s risk over the same period. However, cannabis use by students continues to be a public health challenge throughout the country. Universities have long relied on education programs to address these risks; however, many of these programs have limitations and fail to consider some of the modern risk factors ...

Precise gene editing in human stem cells and neurons reveals links between genome organization and autism

2023-10-05
NEW YORK, NY (October 5, 2023) – Researchers have used CRISPR gene editing, stem cells and human neurons to study the impact of a gene that is commonly mutated in autism. This new study, published today in The American Journal of Human Genetics, ties mutations in the gene CHD8 with a broad spectrum of molecular and cellular defects in human cortical neurons.  Autism is a highly heritable disorder with a recent increase in incidence — approximately 1 in 40 children in the US are diagnosed with autism. Over the past decade, sequencing studies have found many ...

AI helps reduce online harassment by enhancing conversation courtesy

AI helps reduce online harassment by enhancing conversation courtesy
2023-10-05
Check the comments section of many social media and digital news platforms, and you’re likely to find a cesspool of insults, threats and even harassment. In fact, a Pew Research Center survey found that 41% of American adults have personally experienced online harassment, and one in five adults say they’ve been harassed online for their political views. But researchers at BYU and Duke University say derisive online conversations don’t have to be the norm. A joint paper between the two universities found that artificial intelligence can be used to improve conversation quality and promote civil dialogue in online ...

Two-day course teaches hospitals and health systems how to address unprofessionalism and unsafe behavior

2023-10-05
With a myriad of external pressures and challenges facing hospitals and health systems today, it is more important now than ever to mitigate internal risks. Unprofessional behavior, which negatively impacts patient care, retention, and team dynamics, is a legal, financial, and cultural risk that many health systems are now looking to address head-on. Peer-reviewed research consistently shows unprofessional behavior in health systems can be reduced by 85% through implementing the right tools and processes.   The Vanderbilt ...

LAST 30 PRESS RELEASES:

How can we reduce adolescent pregnancies in low- and middle-income countries?

When sun protection begets malnutrition: vitamin D deficiency in Japanese women

Cannabis use can cause chromosomal damage, increasing cancer risk and harming offspring

Survey finds many Americans apply misguided and counterproductive advice to combat holiday weight gain

New study reveals half a century of change on Britain’s iconic limestone pavements

Green flight paths could unlock sustainable aviation, new research suggests

Community partners key to success of vaccine clinic focused on neurodevelopmental conditions

Low-carbon collaborative dual-layer optimization for energy station considering joint electricity and heat demand response

McMaster University researchers uncover potential treatment for rare genetic disorders

The return of protectionism: The impact of the Sino-US trade war

UTokyo and NARO develop new vertical seed distribution trait for soybean breeding

Research into UK’s use of plastic packaging finds households ‘wishcycle’ rather than recycle – risking vast contamination

Vaccine shows promise against aggressive breast cancer

Adverse events affect over 1 in 3 surgery patients, US study finds

Outsourcing adult social care has contributed to England’s care crisis, argue experts

The Lancet: Over 800 million adults living with diabetes, more than half not receiving treatment, global study suggests

New therapeutic approach for severe COVID-19: faster recovery and reduction in mortality

Plugged wells and reduced injection lower induced earthquake rates in Oklahoma

Yin selected as a 2024 American Society of Agronomy Fellow

Long Covid could cost the economy billions every year

Bluetooth technology unlocks urban animal secrets

This nifty AI tool helps neurosurgeons find sneaky cancer cells

Treatment advances, predictive biomarkers stand to improve bladder cancer care

NYC's ride-hailing fee failed to ease Manhattan traffic, new NYU Tandon study reveals

Meteorite contains evidence of liquid water on Mars 742 million years ago

Self-reported screening helped reduce distressing symptoms for pediatric patients with cancer

Which risk factors are linked to having a severe stroke?

Opening borders for workers: Abe’s profound influence on Japan’s immigration regime

How skills from hospitality and tourism can propel careers beyond the industry

Research shows managers of firms handling recalls should review media scrutiny before deciding whether to lobby

[Press-News.org] A new qubit platform is created atom by atom