Navigation Links
Cold atoms and nanotubes come together in an atomic 'black hole'
Date:4/6/2010

CAMBRIDGE, Mass., April 6, 2010 -- Carbon nanotubes, long touted for applications in materials and electronics, may also be the stuff of atomic-scale black holes.

Physicists at Harvard University have found that a high-voltage nanotube can cause cold atoms to spiral inward under dramatic acceleration before disintegrating violently. Their experiments, the first to demonstrate something akin to a black hole at atomic scale, are described in the current issue of the journal Physical Review Letters.

"On a scale of nanometers, we create an inexorable and destructive pull similar to what black holes exert on matter at cosmic scales," says Lene Vestergaard Hau, Mallinckrodt Professor of Physics and of Applied Physics at Harvard. "As importantly for scientists, this is the first merging of cold-atom and nanoscale science, and it opens the door to a new generation of cold atom experiments and nanoscale devices."

Hau and co-authors Anne Goodsell, Trygve Ristroph, and Jene A. Golovchenko laser-cooled clouds of one million rubidium atoms to just a fraction of a degree above absolute zero. The physicists then launched this millimeter-long atomic cloud towards a suspended carbon nanotube, located some two centimeters away and charged to hundreds of volts.

The vast majority of the atoms passed right by the wire, but those that came within a micron of it -- roughly 10 atoms in every million-atom cloud -- were inescapably attracted, reaching high speeds as they spiraled toward the nanotube.

"From a start at about 5 meters per second, the cold atoms reach speeds of roughly 1,200 meters per second, or more than 2,700 miles per hour, as they circle the nanotube," says Goodsell, a graduate student on the project and now a postdoctoral researcher in physics at Harvard. "As part of this tremendous acceleration, the temperature corresponding to the atoms' kinetic energy increases from 0.1 degrees Kelvin to thousands of degrees Kel
'/>"/>

Contact: Steve Bradt
steve_bradt@harvard.edu
617-496-8070
Harvard University
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Physicists pin down spin of surface atoms
2. Sheet of carbon atoms acts like a billiard table, physicists find
3. Sheet of carbon atoms acts like a billiard table, physicists find
4. Stopping atoms
5. Bon MOT: Innovative atom trap catches highly magnetic atoms
6. Memory in artificial atoms
7. Cold atoms could replace hot gallium in focused ion beams
8. Ancient diatoms lead to new technology for solar energy
9. The sensitive side of carbon nanotubes: Creating powerful pressure sensors
10. Understanding of actuator properties of carbon nanotubes bring micro machines closer
11. Improved wettability of carbon nanotubes opens the door to new possibilities
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Cold atoms and nanotubes come together in an atomic 'black hole'
(Date:3/27/2015)... YORK , March 27, 2015   ... in liquid photopurification, announced today that the Company ... for the continued trading of SurePure ("SURP") securities ... venture marketplace for entrepreneurial and development stage companies. ... Group introduced standards and eligibility requirements designed to ...
(Date:3/27/2015)... Governor Andrew M. Cuomo today announced the ... the world’s largest business idea competition with $5 million ... million, six $500,000 awards and four $250,000 awards. The ... for prizes that will turn ideas with high growth ... region. , "Last year's successful 43North competition brought ...
(Date:3/26/2015)... -- BioNano Genomics, Inc., the leader in genome mapping, announced ... commercial officer. Salyer has more than 20 years of ... sciences. At BioNano, Salyer will oversee the commercialization of ... assemble a comprehensive view of complex genomes to help ... located in the United States , ...
(Date:3/26/2015)... "In America," the popular news television program ... is hosted by legendary film actor James Earl Jones, has ... an upcoming segment. , Botany is commonly described as ... actually quite a bit more complicated than that. Scientists and ... living organisms, from the smallest bacteria known to man to ...
Breaking Biology Technology:SurePure Completes Verification and Approved for Trading on the OTCQB Marketplace 2Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 2Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 3Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 4Governor Andrew M. Cuomo Anounces Launch of Year Two of World's Largest Business Idea Competition and Opening of New Incubator Space in Buffalo, New York 5BioNano Genomics Appoints Terry Salyer as Chief Commercial Officer 2BioNano Genomics Appoints Terry Salyer as Chief Commercial Officer 3
... ... and cytokine-related research tips and information. , ... Piscataway, NJ (PRWEB) May 20, 2010 -- ... the world’s leading interferon expert for life science researchers, has launched a revamped ...
... , CAMBRIDGE, Mass. , May 19 Idenix Pharmaceuticals, Inc. (Nasdaq: ... the 2010 Citi Annual Global Health Care Conference on Wednesday, May 26, 2010 ... New York City and at the Jefferies 2010 Global Life Sciences Conference on ... Hyatt hotel, New York City . , ...
... May 19, 2010 Amsterdam Molecular,Therapeutics (EuroNext Amsterdam: AMT), ... non-audited business update in compliance with,the EU transparency directive. This report ... 2010. , , Q1 2010 Highlights, ... - Dossier validated by EMA on January 20, 2010, ...
Cached Biology Technology:Web Resource for Interferon Research 2Idenix Pharmaceuticals to Present at Two Upcoming Investor Conferences 2AMT Provides Business Update for the First Quarter 2010 2AMT Provides Business Update for the First Quarter 2010 3
(Date:3/20/2015)... Research and Markets ( http://www.researchandmarkets.com/research/rswjb4/hand_geometry ) has ... Strategic Business Report" report to their offering. ... US$ Thousands. The report provides separate comprehensive analytics for the ... , Europe , Asia-Pacific ... World. Annual estimates and forecasts are provided for ...
(Date:3/17/2015)... , March 17, 2015 MedNet ... specializing in clinical study management systems, is pleased ... attendance at ARENA,s Outsourcing in Clinical Trials Southeast ... event provides an excellent forum for MedNet to ... and affordable software-as-a-service (SaaS) eClinical technology platform. ...
(Date:3/12/2015)... , March 12, 2015 The mascots of ... Children,s Hospital, part of Wake Forest Baptist Medical Center. ... for the 2015 ACC Men,s Basketball Tournament. Young patients ... them and getting their autographs. Brenner Children,s ... It is the only children,s hospital in northwest ...
Breaking Biology News(10 mins):Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4Connect With MedNet Solutions At Outsourcing In Clinical Trials Southeast 2
... A joint study published in Cell by ... for Research in Biomedicine (IRB Barcelona) and the Institute ... Dolf Weijers at the University of Wageningen, in the ... called auxins activate multiple vital plant functions through various ...
... This news release is available in German . ... the death of thousands of neurons in the brain. Nerve growth ... of the neurons; however, clinical tests with GDNF have not yielded ... Neurobiology in Martinsried and their colleagues have now succeeded in demonstrating ...
... of Vitamin A used by teenagers to combat acne might ... an international team of researchers have found that it may ... with autoimmune disorders or those who have received transplants. This ... Journal of Leukocyte Biology . "The ...
Cached Biology News:Scientists unveil a molecular mechanism that controls plant growth and development 2Parkinson gene: Nerve growth factor halts mitochondrial degeneration 2Parkinson gene: Nerve growth factor halts mitochondrial degeneration 3Vitamin A used in acne medicines may help autoimmune and transplant patients 2
...
... The new IKATUBE ULTRA TURRAX Tube Disperser ... closed homogenizing system. It offers a cleaner, safer, ... IKATUBE system processes sample volumes from 2 to ... sample type, researchers can choose one of 4 ...
...
... Triple-angle light scattering detector for ... digital signal processing hardware for two ... UV detectors. Also contains an analog ... interfacing to strip chart recorders. Includes ...
Biology Products: