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

Quantum physics: Flavors of entanglement

Quantum physics: Flavors of entanglement
2010-09-28
(Press-News.org) Entanglement is a fascinating property connecting quantum systems. Albert Einstein called it the "spooky action at a distance". This bizarre coupling can link particles, even if they are located on opposite sides of the galaxy. The strength of their connections is behind the promising quantum computers, the dream machines capable of quick and efficient computations.

The team lead by Rainer Blatt at the Institute of Experimental Physics of the University of Innsbruck has been working very successfully towards the realization of a quantum computer. In their recent study, these physicists exposed four entangled ions to a noisy environment. "At the beginning the ions showed very strong connections," says Julio Barreiro. "When exposed to the disturbing environment, the ions started a journey to the classical world. In this journey, their entanglement showed a variety of flavors or properties." Their results go far beyond what was previously investigated with two entangled particles since four particles can be connected in many more ways. This investigation forms an important basis for the understanding of entanglement under the presence of the disturbances of the environment and the boundary between the dissimilar quantum and classical worlds. The work has now been published in the journal Nature Physics.

As part of their study, the Innsbruck scientists have developed new theoretical tools for the description of entangled states and novel experimental techniques for the control of the particles and their environment. Their high-impact research is possible thanks to support from the Austrian Science Fund FWF, the European Commission and the Tyrolean industry.



INFORMATION:

Publication: Experimental multiparticle entanglement dynamics induced by decoherence. J. T. Barreiro, P. Schindler, O. Gühne, T. Monz, M. Chwalla, C. F. Roos, M. Hennrich, R. Blatt. Nature Physics. 27. September 2010. (DOI:10.1038/NPHYS1781,

[Attachments] See images for this press release:
Quantum physics: Flavors of entanglement

ELSE PRESS RELEASES FROM THIS DATE:

Medical profession needs special training to handle self-harm, says international review

2010-09-28
Healthcare professionals are still not receiving the appropriate training and support they need to help people who self-harm and this can result in negative attitudes and inadequate levels of care. Those are the key findings of a research review carried out by mental health specialists from the University of Nottingham, UK, and published in the October issue of the Journal of Psychiatric and Mental Health Nursing. Staff nurse Jo McHale and lecturer Anne Felton studied 19 papers from the UK, Australia, Sweden and Ireland, dating from 1998 to 2009 and covering the views ...

Spaniards choose stable jobs over ones related to their training

Spaniards choose stable jobs over ones related to their training
2010-09-28
"If you study, you are more likely to get a stable job, even if it doesn't have anything to do with your training". This is the thinking of workers living in Spain, according to a research study by the Pompeu Fabra University (UPF), which studied the level of over-education in Spain, Italy and France, and the relationship between this and temporary work. "This can be explained by the high levels of employment insecurity in Spain in comparison with other European countries", Luis Ortiz, author of the study and a researcher at the UPF, tells SINC. The study, which has ...

Novel mechanism discovered for communication between proteins that cause 'cell suicide'

2010-09-28
A recent study undertaken by investigators at five research centres, amongst which is the CSIC-University of the Basque Country Biophysics Unit, provides new clues for the understanding of the 'cell suicide' process. The research was published in the latest issue of the prestigious Cell journal. Our bodies daily eliminate in a controlled manner more than 100 million defective cells, by means of a procedure known as 'cell suicide' or apoptosis. This is a highly complicated process, any imbalances thus arising causing serious diseases, prominent amongst which is cancer. ...

Red light regulates nectar secretion

2010-09-28
Flowering plants produce nectar to attract insect pollinators. Some plant species, such as Lima bean, also secrete nectar from so-called extrafloral nectaries to attract ants which in turn fend off herbivores. Scientists of the Max Planck Institute in Jena, Germany, have discovered that the production of extrafloral nectar is light dependent. They have shown that the plants are able not only to distinguish between day and night, but also to adapt their nectar secretion to current light conditions by using a special photoreceptor, the phytochrome. Phytochrome probably influences ...

Surgery found effective for patients with aggressive prostate cancer

2010-09-28
ROCHESTER, Minn. -- In one of the first studies to focus exclusively on the outcomes after treatment for patients with high-risk prostate cancer,(http://www.mayoclinic.org/prostate-cancer/) researchers have found that surgery provides high survival rates. Collaborating researchers at Mayo Clinic and Fox Chase Cancer Center (http://www.fccc.edu/) in Philadelphia discovered that patients with the most aggressive forms of prostate cancer who had radical prostatectomy procedures had a 10-year cancer-specific survival rate of 92 percent and an overall survival rate of 77 percent. The ...

Computer model shows US vulnerable to MDR-TB epidemic

2010-09-28
While the U.S. has made great progress in the prevention and treatment of tuberculosis, the nation has become more susceptible to potential epidemics of multidrug-resistant tuberculosis (MDR-TB), according a study led by Johns Hopkins researchers. Computer simulations show that as TB prevalence falls, the risk for more extensive MDR-TB increases. In addition, the simulation also showed that higher detection of TB cases without proper treatment of cases also increased risk. The study findings are published in the September 22 edition of the journal PLoS ONE. An interactive ...

Study shows patient-specific vaccines for metastatic melanoma may induce durable complete regression

2010-09-28
Newport Beach, CA – September 27, 2010 – Hoag Memorial Hospital Presbyterian recently announced encouraging clinical study results for patient-specific vaccine therapy to treat metastatic melanoma. The study is ongoing, but the report concludes that patient-specific vaccines can sometimes induce durable complete regression of progressing soft-tissue melanoma metastases, as demonstrated in one particular patient who participated in the trial. The study report, entitled: "Durable Complete Response of Refractory, Progressing, Metastatic Melanoma after Treatment with a ...

Diving deeper into the gene pool

2010-09-28
About ten years ago, the discovery of microRNAs ― tiny cellular molecules that regulate our genetic code ― unlocked a world of scientific possibilities, including a deeper understanding of human disease. One new analytical technology is "deep sequencing," which gives scientists the ability to discover invaluable information about human diseases at a genetic level. Now, Tel Aviv University researchers have developed the cutting-edge technology to better analyze these results. The software, called miRNAkey, was developed by Roy Ronen as part of a team of researchers ...

Elevated nitrogen and phosphorus still widespread in much of the nation's streams and groundwater

2010-09-28
Elevated concentrations of nitrogen and phosphorus, nutrients that can negatively impact aquatic ecosystems and human health, have remained the same or increased in many streams and aquifers across the Nation since the early 1990's, according to a new national study by the U.S. Geological Survey. "This USGS report provides the most comprehensive national-scale assessment to date of nitrogen and phosphorus in our streams and groundwater," said Marcia McNutt, USGS Director. "For years we have known that these same nutrients in high concentrations have resulted in 'dead ...

Tile drainage directly related to nitrate loss

Tile drainage directly related to nitrate loss
2010-09-28
URBANA – Tile drainage in the Mississippi Basin is one of the great advances of the 19th and 20th centuries, allowing highly productive agriculture in what was once land too wet to farm. In fact, installation of new tile systems continues every year, because it leads to increased crop yields. But a recent study shows that the most heavily tile-drained areas of North America are also the largest contributing source of nitrate to the Gulf of Mexico, leading to seasonal hypoxia. In the summer of 2010 this dead zone in the Gulf spanned over 7,000 square miles. Scientists ...

LAST 30 PRESS RELEASES:

Study links wind-blown dust from receding Salton Sea to reduced lung function in area children

Multidisciplinary study finds estrogen could aid in therapies for progressive multiple sclerosis

Final day of scientific sessions reveals critical insights for clinical practice at AAO-HNSF Annual Meeting and OTO EXPO

Social adversity and triple-negative breast cancer incidence among black women

Rapid vs standard induction to injectable extended-release buprenorphine

Galvanizing blood vessel cells to expand for organ transplantation

Common hospice medications linked to higher risk of death in people with dementia

SNU researchers develop innovative heating and cooling technology using ‘a single material’ to stay cool in summer and warm in winter without electricity

SNU researchers outline a roadmap for next-generation 2D semiconductor 'gate stack' technology

The fundamental traditional Chinese medicine constitution theory serves as a crucial basis for the development and application of food and medicine homology products

Outfoxed: New research reveals Australia’s rapid red fox invasion

SwRI’s Dr. Chris Thomas named AIAA Associate Fellow

National Collegiate Athletic Association (NCAA) funding for research on academic advising experiences of Division I Black/African American student-athletes at minority serving institutions

Johri developing artificial intelligence literacy among undergraduate engineering and technology students

Boston Children’s receives a $35 million donation to accelerate development of therapeutic options for children with brain disorders through the Rosamund Stone Zander and Hansjoerg Wyss Translational

Quantum crystals offer a blueprint for the future of computing and chemistry

Looking beyond speech recognition to evaluate cochlear implants

Tracking infectious disease spread via commuting pattern data

Underweight children cost the NHS as much per child as children with obesity, Oxford study finds.

Wetland plant-fungus combo cleans up ‘forever chemicals’ in a pilot study

Traditional Chinese medicine combined with peginterferon α-2b in chronic hepatitis B

APS and SPR honor Dr. Wendy K. Chung with the 2026 Mary Ellen Avery Neonatal Research Award

The Gabriella Miller Kids First Data Resource Center (Kids First DRC) has launched the Variant Workbench

Yeast survives Martian conditions

Calcium could be key to solving stability issues in sodium-ion batteries

Can smoother surfaces prevent hydrogen embrittlement?

Heart rate changes predict depression treatment success with magnetic brain stimulation

Genetics pioneer transforms global depression research through multi-omics discoveries

MDMA psychiatric applications synthesized: Comprehensive review examines PTSD treatment and emerging therapeutic indications

Psychedelics offer new therapeutic framework for stress-related psychiatric disorders

[Press-News.org] Quantum physics: Flavors of entanglement