Navigation Links
Golden ratio discovered in a quantum world
Date:1/10/2010

This release is available in German.

Researchers from the Helmholtz-Zentrum Berlin fr Materialien und Energie (HZB), in cooperation with colleagues from Oxford and Bristol Universities, as well as the Rutherford Appleton Laboratory, UK, have for the first time observed a nanoscale symmetry hidden in solid state matter. They have measured the signatures of a symmetry showing the same attributes as the golden ratio famous from art and architecture. The research team is publishing these findings in Science on the 8. January.

On the atomic scale particles do not behave as we know it in the macro-atomic world. New properties emerge which are the result of an effect known as the Heisenberg's Uncertainty Principle. In order to study these nanoscale quantum effects the researchers have focused on the magnetic material cobalt niobate. It consists of linked magnetic atoms, which form chains just like a very thin bar magnet, but only one atom wide and are a useful model for describing ferromagnetism on the nanoscale in solid state matter.

When applying a magnetic field at right angles to an aligned spin the magnetic chain will transform into a new state called quantum critical, which can be thought of as a quantum version of a fractal pattern. Prof. Alan Tennant, the leader of the Berlin group, explains "The system reaches a quantum uncertain or a Schrdinger cat state. This is what we did in our experiments with cobalt niobate. We have tuned the system exactly in order to turn it quantum critical."

By tuning the system and artificially introducing more quantum uncertainty the researchers observed that the chain of atoms acts like a nanoscale guitar string. Dr. Radu Coldea from Oxford University, who is the principal author of the paper and drove the international project from its inception a decade ago until the present, explains: "H
'/>"/>

Contact: Prof. Alan Tennant
tennant@helmholtz-berlin.de
49-308-062-2741
Helmholtz Association of German Research Centres
Source:Eurekalert

Page: 1 2 3

Related biology technology :

1. Golden Meditech Announces HK$217 Million Private Equity Financing for Hospital Subsidiary
2. Fenwal and Golden Meditech Agree to Form Joint Venture in China for Blood Collection and Transfusion Technologies
3. China Sky One Medical, Inc. Signs Agreement with Taiwan Golden Biotechnology Corp. on Development of New Anti-Cancer Drug
4. Golden scales
5. Golden nanocrown
6. Emmy(R)- and Golden Globe(R)-Nominated Actress Marcia Cross to Join Lifetime Networks and Members of Congress From Both Parties at Capitol Hill Press Conference
7. 3SBio Inc. Applies for SFDA Registrational Trial for Feraheme(TM)
8. China Cord Blood Corporation Announces Partial Exercise of Over-Allotment Option
9. U of A led team makes breakthrough demonstration of pH-regulating protein
10. The Honorable Tommy G. Thompson Joins the United Therapeutics Corporation Board of Directors
11. Spectral diagnostics Raises $14 million and enters into strategic collaboration with BioMS Medical to commercialize treatment for sepsis
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/28/2014)... “This kit has an improved extraction efficiency and provides users ... said Mark Tess, PhD, Mycotoxin Product Manager for Charm Sciences. ... USDA-GIPSA inspection agencies that have a need to detect aflatoxin ... a matter of minutes with nothing but our equipment and ... grain before accepting it, but they no longer have to ...
(Date:8/28/2014)... are important devices in spintronics, an electronic which ... electrons but also on their spin and the ... electric into magnetic signals and vice versa. Recently, ... the Institute of Physics at Johannes Gutenberg University ... Prague, and Japan, has for the first time ...
(Date:8/28/2014)... August 28, 2014 The ability for ... culture that will allow individuals to perform at the ... important for employers looking to compete in this post–recession ... embracing this trend, as the sector increasingly focuses on ... company, which will have real results on the organization's ...
(Date:8/28/2014)... 2014   SunTrust Robinson Humphrey (STRH) ... to its equity research team in biotechnology and ... in equity research demonstrates our commitment to providing ... enhance their investment decision making," said Biff ... continue to make significant investments in differentiated content ...
Breaking Biology Technology:A new, tunable device for spintronics 2A new, tunable device for spintronics 3Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 2Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 3SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 2SunTrust Robinson Humphrey Expands Equity Research in Healthcare and Energy 3
... 15, 2011 This evening, Novo Nordisk awarded sponsorships ... support programs that educate people living with type 2 ... reduce the risk of long-term diabetes related complications. The ... program – a new initiative that aims to promote ...
... 15, 2011 Roka Bioscience announced today that the ... certification of the Listeria Detection Assay. This evaluation is ... (AOAC-RI) certification of methods used in the food safety ... laboratory and monitored by AOAC. The internal portion of ...
... /PRNewswire-Asia/ -- ShangPharma Corporation (NYSE: SHP ... pharmaceutical and biotechnology research and development outsourcing company, ... leading Chinese pharmaceutical company, today announced that Shanghai ... and Hengrui have entered into a strategic partnership ...
Cached Biology Technology:Novo Nordisk and Atlanta Area Organizations Partner on Diabetes Education Programs 2Novo Nordisk and Atlanta Area Organizations Partner on Diabetes Education Programs 3Roka Bioscience Initiates External Trial for AOAC Certification 2ShangPharma Subsidiary and Jiangsu Hengrui Medicine Partner in Therapeutic Antibody Research and Development 2ShangPharma Subsidiary and Jiangsu Hengrui Medicine Partner in Therapeutic Antibody Research and Development 3
(Date:8/29/2014)... has been known about what genetic changes transform wild ... one of whom is a University of Montana assistant ... controlling the development of the brain and the nervous ... was published Aug. 28 in Science and ... at http://www.sciencemag.org/ ., The domestication of animals and ...
(Date:8/29/2014)... researchers explored the type and number of connections in ... plays on robustness in a study published in ... found that the assortativity signature contributes to a network,s ... that varying the out-out assortativity of TFN models has ... the other three types of assortativity," said Dov A. ...
(Date:8/29/2014)... as the prolific bloomer Emiliania huxleyi , can ... The finding contradicts the common view that E. ... scarce supplies of thiamine in the ocean to survive. ... the ocean," says CIFAR Senior Fellow Alexandra Worden ... with CIFAR fellows John Archibald (Dalhousie University), ...
Breaking Biology News(10 mins):New research reveals how wild rabbits were genetically transformed into tame rabbits 2New research reveals how wild rabbits were genetically transformed into tame rabbits 3Assortativity signatures of transcription factor networks contribute to robustness 2Not all phytoplankton in the ocean need to take their vitamins 2Not all phytoplankton in the ocean need to take their vitamins 3
... Smart Search & Match,the leading provider of high-performance ... has joined the company as Product Marketing Manager. ... 15 years of product and marketing management,experience to ... many high-tech products and solutions worldwide. He has ...
... 2008 An international research team led by Tim ... the director of the School of Medicine,s Center for ... alternative splicing, the process by which single genes produce ... that curing the more than half of genetic diseases ...
... what they think may be a basic recipe for ... stem cells from essentially any mammal, including cows, pigs ... December 26th issue of the journal Cell , ... demonstrated to work in mice earlier this year, which ...
Cached Biology News:Case Western Reserve finds mechanism underlying alt. splicing of premessenger RNA into messenger RNA 2Case Western Reserve finds mechanism underlying alt. splicing of premessenger RNA into messenger RNA 3Recipe for capturing authentic embryonic stem cells may apply to any mammal, study suggests 2Recipe for capturing authentic embryonic stem cells may apply to any mammal, study suggests 3
... Storage: The kit is stable for 12 months ... contents of the kit cold. , ,Principle: ... silica-gel based membrane which selectively adsorbs up to ... specialized binding buffers. Nucleotides, oligos ( , ,Application: ...
The Econo gradient pump rack is a preassembled rack that is used to hold the components of the Econo gradient pump kits....
... Leu DAP FLISP Assay with FAM-Labeled ... nm) • Accurately measure serine protease ... permeabilization • B-Bridge's FLISP Kits utilize ... proteases (FLISPs) to measure chymotrypsin-like activity ...
... instrument is the cycler that revolutionized ... uniformity and swappable blocks ensure consistent ... This rugged machine is more than ... for new features and upgrades as ...
Biology Products: