Navigation Links
Strange new twist: Berkeley researchers discover Möbius symmetry in metamaterials
Date:12/20/2010

Mbius symmetry, the topological phenomenon that yields a half-twisted strip with two surfaces but only one side, has been a source of fascination since its discovery in 1858 by German mathematician August Mbius. As artist M.C. Escher so vividly demonstrated in his "parade of ants," it is possible to traverse the "inside" and "outside" surfaces of a Mbius strip without crossing over an edge. For years, scientists have been searching for an example of Mbius symmetry in natural materials without any success. Now a team of scientists has discovered Mbius symmetry in metamaterials materials engineered from artificial "atoms" and "molecules" with electromagnetic properties that arise from their structure rather than their chemical composition.

Xiang Zhang, a scientist with the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and a professor at the University of California (UC) Berkeley, led a study in which electromagnetic Mbius symmetry was successfully introduced into composite metamolecular systems made from metals and dielectrics. This discovery opens the door to finding and exploiting novel phenomena in metamaterials.

"We have experimentally observed a new topological symmetry in electromagnetic metamaterial systems that is equivalent to the structural symmetry of a Mbius strip, with the number of twists controlled by sign changes in the electromagnetic coupling between the meta-atoms," Zhang says. "We have further demonstrated that metamaterials with different coupling signs exhibit resonance frequencies that depend on the number but not the locations of the twists. This confirms the topological nature of the symmetry."

Working with metallic resonant meta-atoms configured as coupled split-ring resonators, Zhang and members of his research group assembled three of these meta-atoms into trimers. Through careful design of the electromagnetic couplings between the constituent meta-atoms, these
'/>"/>

Contact: Lynn Yarris
lcyarris@lbl.gov
510-486-5375
DOE/Lawrence Berkeley National Laboratory
Source:Eurekalert  

Page: 1 2 3 4

Related biology technology :

1. Berkeley Law Survey Challenges Popular Beliefs About Hi-tech Startup Patents
2. Grove Gift Launches Translational Medicine Program at UCSF & UC Berkeley
3. Berkeley Lab scientists create molecular paper
4. LS9, Inc., U.C Berkeley, and JBEI Make Major Breakthrough in Cellulosic Fuels Production
5. Berkeley researchers take the lead out of piezoelectrics
6. Berkeley researchers find new route to nano self-assembly
7. DOE to Explore Scientific Cloud Computing at Argonne, Lawrence Berkeley National Laboratories
8. Rice researchers take molecules temperature
9. Researchers create new high-performance fiber
10. Dutch royal honors for Manchester researchers
11. Virtual reality helps researchers track how brain responds to surroundings
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Strange new twist: Berkeley researchers discover Möbius symmetry in metamaterials
(Date:12/24/2014)... Dec. 23, 2014 Sigma-Aldrich Corporation (NASDAQ: ... waiting period under the Hart-Scott-Rodino Antitrust Improvements Act ... on December 22, 2014, thereby completing the U.S. ... the acquisition of the Company by Merck KGaA, ... satisfies another condition to closing the transaction, which ...
(Date:12/22/2014)... (PRWEB) December 22, 2014 The ... global leader of technical training across the life sciences ... Data Management (SCDM) to provide the organization's members ... programs —providing access to the more than 350 sessions ... members with 10% off when registering for a ...
(Date:12/22/2014)... 22, 2014  Alternative Energy & Environmental Solutions, ... signed a letter of intent to acquire BioTechPharma ... patented a nanotechnology-based development platform used to create ... rapid on-site collection and testing to identify infectious ... in an immediate, non-invasive and cost-effective manner. ...
(Date:12/22/2014)... December 22, 2014 The ... publication of original research, reviews and editorials addressing ... clinical practice, today published a provocative article exploring ... development, progression and potential treatment of prostate cancer. ... research and proposes the possibility that there could ...
Breaking Biology Technology:Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 2Acquisition of Sigma-Aldrich by Merck KGaA, Darmstadt, Germany, Receives U.S. Antitrust Clearance 3CfPIE Announces Partnership with the Society for Clinical Data Management 2CfPIE Announces Partnership with the Society for Clinical Data Management 3ALNE Announces Intention To Acquire BioTechPharma 2Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 2Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 3Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 4
... protect us against otherwise deadly chemical attacks, such as the ... and thousands more injured or with temporary vision problems. The ... a detoxifying enzyme produced naturally by our livers, according to ... & Biology , a Cell Press publication. "The sarin ...
... (NIL) is evolving at a rapid pace. But what ... the market? How do we bridge the gap between basic ... tools needed for each product? The European project ... Applications based on Nanoimprinting Lithography. The project, now reaching its ...
... or the "Company") (NASDAQ and MTA: CTIC) today reported financial ... First Quarter Financial ResultsFor the quarter ... compared to $20.1 million for the same period in 2011. ... million ($0.09 per share) for the quarter ended March 31, ...
Cached Biology Technology:Defending against chemical acts of terrorism 2Low-cost optical components through nanoimprinting lithography 2Low-cost optical components through nanoimprinting lithography 3Cell Therapeutics, Inc. (CTI) Reports First Quarter Financial Results and Milestones 2Cell Therapeutics, Inc. (CTI) Reports First Quarter Financial Results and Milestones 3Cell Therapeutics, Inc. (CTI) Reports First Quarter Financial Results and Milestones 4Cell Therapeutics, Inc. (CTI) Reports First Quarter Financial Results and Milestones 5
(Date:12/24/2014)... YORK , Dec. 23, 2014  Since its launch ... helped thousands of people to eliminate the pain of ... the antiquated system with their own biometrics fused to ... remember usernames and passwords, Hoyos Labs , the ... announced today that it is offering the app for ...
(Date:12/22/2014)... -- NXT-ID, Inc. (NASDAQ: NXTD and NXTDW) ... on the growing mobile commerce market, announces it has ... Robbins for the 2015 International CES debut of ... Apollo Robbins will be at the NXT-ID booth ... of his famous theft techniques to visiting media and ...
(Date:12/22/2014)... Research and Markets ( ... the "The Global Watermarking and Fingerprinting ... http://photos.prnewswire.com/prnh/20130307/600769 ... the global digital media watermarking and fingerprinting ... piracy by securely and invisibly embedding identifiable ...
Breaking Biology News(10 mins):1U Offers Best Solution to the Username / Password Dilemma: For FREE! 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 3NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 3NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 4The Global Watermarking and Fingerprinting Markets 2
... Polytechnic Institute will continue to advance the frontiers ... Blue Gene supercomputer. Awarded under IBM's Shared University ... the $100 million partnership between Rensselaer, IBM, and ... world's most powerful university-based supercomputing centers. , The ...
... in amber -- perhaps the oldest bee ever found -- ... according to Bryan Danforth, Cornell associate professor of entomology. , ... bee embedded in amber from a mine in northern Myanmar ... fossil discovery, which the researchers say supports a new hypothesis ...
... the Salk Institute for Biological Studies in collaboration with scientists ... high resolution "action shot" of a protein switch that plays ... Their findings, published in the Dec. 8 issue of the ... small molecule inhibitors to control that switch, a protein called ...
Cached Biology News:Supercomputing equipment to advance the frontiers of computational biology 2Two studies on bee evolution reveal surprises 2Detailed 3-D image catches a key regulator of neural stem cell differentiation in action 2Detailed 3-D image catches a key regulator of neural stem cell differentiation in action 3
Goat polyclonal to MLH3 Immunogen: Synthetic peptide: RQSLQQSMPPCEPP (Human) from C Terminus of the protein sequence according to NP_055196....
Rabbit polyclonal to NMDAR1 e/f/g/h ( Abpromise for all tested applications)....
Polyclonal Antibody to Coronin / CORO1C This antibody was developed against synthetic peptides corresponding to amino acids 407-420 of human CORO1C....
Peptide-affinity Purified Polyclonal Antibody to Retinoic Acid-Induced 3 (RAI3/RAIG1)...
Biology Products: