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

New paradigm of quantum information technology revealed through light-matter interaction!

2024-11-19
(Press-News.org) □ A research team led by Professor Jaedong Lee from the Department of Chemical Physics of DGIST (President Kunwoo Lee) has introduced a novel quantum state and a pioneering mechanism for extracting and controlling quantum information using exciton and Floquet states.

 

□ Collaborating with Professor Noejung Park from UNIST’s Department of Physics (President Chongrae Park), the team has, for the first time, demonstrated the formation and synthesis process of exciton and Floquet states, which arise from light-matter interactions in two-dimensional semiconductors. This study captures quantum information in real-time as it unfolds through entanglement, offering valuable insights into the exciton formation process in these materials, thereby advancing quantum information technology.

 

□ Unlike traditional three-dimensional solids, where quantum coherence is challenging to maintain owing to thermal influences, two-dimensional semiconductors feature energy levels for excitons and conduction bands that remain distinct owing to weaker screening effects, thus preserving coherence over extended periods. This distinction makes two-dimensional semiconductors promising for developing quantum information devices. Yet, until now, the coherence and decoherence mechanisms of electrons during exciton formation have been poorly understood.

 

□ Through theoretical calculations using time-resolved angular-resolved photoelectron spectroscopy on two-dimensional semiconductor materials, Professor Lee’s team confirmed that exciton formation coincides with the creation of a Floquet state, producing a combined new quantum state. Additionally, they identified the mechanism by which quantum entanglement occurs within this state and proposed a real-time method to extract, unfold, and control quantum information.

 

□ Professor Jaedong Lee, of DGIST’s Department of Chemical Physics, commented, “We have discovered a new quantum state, known as the exciton-Floquet synthesis state, and proposed a novel mechanism for quantum entanglement and quantum information extraction. This is anticipated to drive forward quantum information technology research in two-dimensional semiconductors.” UNIST’s Professor Noejung Park added, “This research sets a new paradigm for quantum information technology, including quantum computers, marking an important milestone for its realization.”

 

□ The research received funding from the Korea Research Foundation’s Mid-Career Researcher Support Program and DGIST’s International Joint Research Project. The findings (first author: Hyoseop Park, on Integrated Track of DGIST’s Department of Chemical Physics) were published in Nano Letters, a leading journal in nanoscience and technology, in October.

 

- Corresponding Author E-mail Address : jdlee@dgist.ac.kr

END


ELSE PRESS RELEASES FROM THIS DATE:

MSU researchers find trees acclimate to changing temperatures

2024-11-19
Images  Climate change is a persistent and growing challenge to plant life on our planet. Changes to the environment that plants are unaccustomed to affect how they grow, putting much at risk. Increasingly, plant scientists are trying to determine how these environmental changes will impact plant life and whether plants will be able to acclimate to a new status quo.     Researchers from the Walker lab at the Michigan State University-U.S. Department of Energy Plant Research Laboratory, or PRL, are looking at how paper birch trees adapt to changing environments based on how they manage a vital plant process called photorespiration.     “If ...

World's first visual grading system developed to combat microplastic fashion pollution

Worlds first visual grading system developed to combat microplastic fashion pollution
2024-11-19
Over 14 million tonnes of microplastics are estimated to be lying on the ocean floor with the fashion industry among the worst pollutants.    But a new project led by textile experts at Heriot-Watt University in the Scottish Borders, is aiming to make fashion labels and consumers alike, more environmentally aware when manufacturing and buying new clothes.    For four years, a small team headed by Dr Lisa Macintyre, associate professor of textiles at the University’s School of Textiles and Design in the Galashiels campus, has overseen painstaking ...

Teenage truancy rates rise in English-speaking countries

2024-11-19
Working paper | Quantitative data analysis | People Truancy rates have risen faster in developed English-speaking countries since the Covid-19 pandemic than in non-English-speaking countries, according to a new working paper by UCL researchers. Teenage girls are also increasingly more likely to skip school than boys across Anglophone countries. In 2022, 26% of all Year 11 pupils in England reported playing truant at least once in the last fortnight. This represented an increase from 2012 and 2018, the previous data capture points, when the figure was at 18% each time. In the same year (2022), 29% of Year 11 girls in England reported skipping school in the past ...

Cholesterol is not the only lipid involved in trans fat-driven cardiovascular disease

Cholesterol is not the only lipid involved in trans fat-driven cardiovascular disease
2024-11-18
LA JOLLA (November 14, 2024)—Excess cholesterol is known to form artery-clogging plaques that can lead to stroke, arterial disease, heart attack, and more, making it the focus of many heart health campaigns. Fortunately, this attention to cholesterol has prompted the development of cholesterol-lowering drugs called statins and lifestyle interventions like dietary and exercise regimens. But what if there’s more to the picture than just cholesterol? New research from Salk Institute scientists describes how another class of lipids, called sphingolipids, contributes to arterial plaques and atherosclerotic cardiovascular disease ...

Study: How can low-dose ketamine, a ‘lifesaving’ drug for major depression, alleviate symptoms within hours? UB research reveals how

Study: How can low-dose ketamine, a ‘lifesaving’ drug for major depression, alleviate symptoms within hours? UB research reveals how
2024-11-18
BUFFALO, N.Y. — University at Buffalo neuroscientists have identified the binding site of low-dose ketamine, providing critical insight into how the medication, often described as a wonder drug, alleviates symptoms of major depression in as little as a few hours with effects lasting for several days.   Published in September in Molecular Psychiatry, the UB discovery will also help scientists identify how depression originates in the brain, and will stimulate research into using ketamine and ketamine-like drugs for other ...

New nasal vaccine shows promise in curbing whooping cough spread

2024-11-18
As whooping cough cases rise in the U.S., a new nasal vaccine developed by Tulane University may hold the key to reducing the spread of the highly contagious respiratory disease. Current pertussis vaccines are widely used and effective at preventing whooping cough, caused by the Bordetella pertussis bacteria.  However, the vaccines fail to clear bacteria from the upper respiratory tract, allowing even vaccinated individuals to spread the disease. The new vaccine combines the traditional pertussis antigens with an innovative ...

Smarter blood tests from MSU researchers deliver faster diagnoses, improved outcomes

2024-11-18
Image Highlights:   MSU researchers now can identify more proteins, or biomarkers, in blood plasma, including those linked to specific diseases like cancer. By identifying these biomarkers earlier, medical researchers can create better diagnostic tests and drugs that target diseases sooner, improving patient outcomes. EAST LANSING, Mich. – Medical professionals have long known that the earlier a disease is detected, the higher the chance for a better patient outcome. Now, a multidisciplinary team of Michigan State University researchers, in ...

Q&A: A new medical AI model can help spot systemic disease by looking at a range of image types

2024-11-18
Artificial intelligence is making impressive strides in its ability to read medical images. In a recent test in Britain's National Health Service, an AI tool looked at the mammograms of over 10,000 women and correctly identified which patients were found to have cancer. The AI also caught 11 cases doctors had missed. But systemic diseases, such as lupus and diabetes, present a greater challenge for these systems, since diagnosis often involves many kinds of medical images, from MRIs to CT scans. Sheng Wang, a University ...

For low-risk pregnancies, planned home births just as safe as birth center births, study shows

For low-risk pregnancies, planned home births just as safe as birth center births, study shows
2024-11-18
CORVALLIS, Ore. – In low-risk pregnancies, mothers and children are just as safe with a planned home birth as they are with a planned birth center birth, a national study led by Oregon State University researchers has shown. The findings, published in Medical Care, contradict doctors’ long-held concerns about home birth, including a recent opinion by the American College of Gynecologists and Obstetricians that describes hospitals and accredited birth centers as the safest places to have a baby. A birth center is a health care facility designed to provide a more natural and home-like environment than a hospital. OSU ...

Leaner large language models could enable efficient local use on phones and laptops

2024-11-18
Large language models (LLMs) are increasingly automating tasks like translation, text classification and customer service. But tapping into an LLM’s power typically requires users to send their requests to a centralized server — a process that’s expensive, energy-intensive and often slow. Now, researchers have introduced a technique for compressing an LLM’s reams of data, which could increase privacy, save energy and lower costs. The new algorithm, developed by engineers at Princeton and Stanford Engineering, works by trimming redundancies and reducing the precision of an LLM’s ...

LAST 30 PRESS RELEASES:

Study shows increasing ‘healthy competition’ between menu options nudges patients towards greener, lower-fat hospital food choices

New insights into melanoma plasticity uncover a critical role of iron metabolism

A graphene sandwich — deposited or transferred?

New light-powered motor fits inside a strand of hair

Oil rig study reveals vital role of tiny hoverflies

Children’s Hospital of Philadelphia researchers boost widespread use of dental varnish across pediatric network

iRECODE: A new computational method that brings clarity to single-cell analysis

New NUS-MOH study: Singapore’s healthcare sector carbon emissions 18% lower than expected, a milestone in the city-state’s net zero journey

QUT scientists create material to turn waste heat into clean power

Major new report sets out how to tackle the ‘profound and lasting impact’ of COVID-19 on cardiovascular health

Cosmic crime scene: White dwarf found devouring Pluto-like icy world

Major report tackles Covid’s cardiovascular crisis head-on

A third of licensed GPs in England not working in NHS general practice

ChatGPT “thought on the fly” when put through Ancient Greek maths puzzle

Engineers uncover why tiny particles form clusters in turbulent air

GLP-1RA drugs dramatically reduce death and cardiovascular risk in psoriasis patients

Psoriasis linked to increased risk of vision-threatening eye disease, study finds

Reprogramming obesity: New drug from Italian biotech aims to treat the underlying causes of obesity

Type 2 diabetes may accelerate development of multiple chronic diseases, particularly in the early stages, UK Biobank study suggests

Resistance training may improve nerve health, slow aging process, study shows

Common and inexpensive medicine halves the risk of recurrence in patients with colorectal cancer

SwRI-built instruments to monitor, provide advanced warning of space weather events

Breakthrough advances sodium-based battery design

New targeted radiation therapy shows near-complete response in rare sarcoma patients

Does physical frailty contribute to dementia?

Soccer headers and brain health: Study finds changes within folds of the brain

Decoding plants’ language of light

UNC Greensboro study finds ticks carrying Lyme disease moving into western NC

New implant restores blood pressure balance after spinal cord injury

New York City's medical specialist advantage may be an illusion, new NYU Tandon research shows

[Press-News.org] New paradigm of quantum information technology revealed through light-matter interaction!