Single quantum bit achieves complex systems modeling
2023-06-09
(Press-News.org)
A team led by Academician GUO Guangcan from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), with collaborative efforts from the University of Manchester, and Nanyang Technological University, has achieved new progress in applying quantum technologies in complex systems modeling. The results were published in Nature Communications on May 6.
Stochastic modeling can help us to predict the future behavior of complex processes, which are non-Markovian. In order to simulate a non-Markovian process, a memory is of necessity to store a large amount of observed information about the past of the system. However, it remains elusive to reduce the memory while ensuring the accuracy of predictions.
Researchers demonstrated that their quantum model based on photonic systems can simulate any process in non-Markovian stochastic processes using only a single quantum bit, even in the presence of experimental noise. The quantum model was capable of making more accurate predictions of future behaviors than the optimal classical model with the same memory dimension.
This study successfully demonstrates the storage benefits of quantum technology for modeling non-Markovian processes in complex systems. This is also a key step toward demonstrating the scalability and robustness of quantum memory advantage.
END
ELSE PRESS RELEASES FROM THIS DATE:
2023-06-09
UPTON, NY — Scientists at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory have determined the atomic-level structure of a zinc-transporter protein, a molecular machine that regulates levels of this crucial trace metal micronutrient inside cells. As described in a paper just published in Nature Communications, the structure reveals how the cellular membrane protein shifts its shape to move zinc from the environment into a cell, and temporarily blocks this action automatically when zinc levels inside the cell get too high.
“Zinc is important for many biological ...
2023-06-09
CAMBRIDGE, MA — Huge libraries of drug compounds may hold potential treatments for a variety of diseases, such as cancer or heart disease. Ideally, scientists would like to experimentally test each of these compounds against all possible targets, but doing that kind of screen is prohibitively time-consuming.
In recent years, researchers have begun using computational methods to screen those libraries in hopes of speeding up drug discovery. However, many of those methods also take a long time, as most of them calculate each target protein’s ...
2023-06-09
Hispanic and non-Hispanic Black female survivors of breast cancer experience higher death rates after being diagnosed with a second primary cancer than members of other ethnic and racial groups, according to recent research from investigators at the Johns Hopkins Kimmel Cancer Center.
In a study of nearly 40,000 adult survivors of breast cancer, the risk of death from a second cancer was 12% higher among non-Hispanic Black survivors and 8% higher among Hispanic survivors compared with non-Hispanic white survivors. Survivors in racial and ethnic minorities were diagnosed with second cancers ...
2023-06-09
UNIVERSITY PARK, Pa — Heavy alcohol consumption may cause permanent dysregulation of neurons, or brain cells, in adolescents, according to a new study in mice. The findings suggest that exposure to binge-levels of alcohol during adolescence, when the brain is still developing, lead to long-lasting changes in the brain’s ability to signal and communicate — potentially setting the stage for long-term behavioral changes and hinting towards the mechanisms of alcohol-induced cognitive changes in humans.
“What we’re seeing here,” said Nikki Crowley, assistant professor in biology and biomedical engineering ...
2023-06-09
The Pennington Biomedical Research Center is looking for children 5 years old and younger to participate in the Shape Up! Keiki research study. The purpose of the Shape Up! Keiki research study is to create a better way to measure and describe health from body shape.
“Parents can learn more about their child’s health by joining the Shape Up! Keiki study, while also providing important information that will help us find quick ways to measure obesity status and health based on a child’s body ...
2023-06-09
Seenu M. Hariprasad, MD, the Shui-Chin Lee Professor of Ophthalmology, will be appointed Chair of the Department of Ophthalmology and Visual Science, effective July 1, 2023. He has been serving as Interim Chair since 2020.
Hariprasad is an internationally recognized vitreoretinal surgeon who originally joined the University of Chicago in 2005. Over the course of his career, he has developed a strong track record as a clinician, surgeon, researcher, educator, and leader in his department. He is a leading specialist in various vitreoretinal disorders, including macular degeneration, diabetic ...
2023-06-09
Everyday materials such as paper and plastic could be transformed into electronic “smart devices” by using a simple new method to apply liquid metal to surfaces, according to scientists in Beijing, China. The study, published June 9 in the journal Cell Reports Physical Science, demonstrates a technique for applying a liquid metal coating to surfaces that do not easily bond with liquid metal. The approach is designed to work at a large scale and may have applications in wearable testing platforms, flexible devices, and soft robotics.
“Before, we thought that it was impossible for liquid metal ...
2023-06-09
About The Study: In this decision analytical model study of the opioid epidemic in four U.S. states, sustained implementation of interventions, including increased delivery of medications for opioid use disorder and naloxone supply, was found to be needed to reduce opioid-related overdose deaths and prevent deaths from increasing again.
Authors: Jagpreet Chhatwal, Ph.D., of Massachusetts General Hospital in Boston, is the corresponding author.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamanetworkopen.2023.14925)
Editor’s Note: Please see ...
2023-06-09
About The Study: In this study of monthly methadone-involved overdose deaths, the take-home policy may have helped reduce deaths for Black and Hispanic men but had no association with deaths of Black or Hispanic women or white men or women. The urgency of the overdose crisis requires that national methadone policy debates and decisions address the heterogeneity of people in treatment; relaxing methadone restrictions may help some particularly at-risk groups.
Authors: Rebecca Arden Harris, M.D., M.Sc., of the University of Pennsylvania in Philadelphia, is the corresponding author.
To ...
2023-06-09
Introducing "Graphene-based Carbocatalysts: Synthesis, Properties, and Applications (Volume 2)"—a concise yet comprehensive compendium for the scientific community, professors, and students alike. This authoritative volume - published by Bentham Science - delves into the forefront of Graphene-based carbocatalysis, providing a wealth of factual knowledge and exploration. The book opens with an in-depth analysis of electrocatalysis by Graphene materials, unraveling the intricate relationship between Graphene and electrochemical reactions. It sheds light on the catalytic prowess exhibited by Graphene-based materials, offering promising avenues for advancing energy ...
LAST 30 PRESS RELEASES:
[Press-News.org] Single quantum bit achieves complex systems modeling
