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:8/26/2015)... ... August 26, 2015 , ... ... that a second US laboratory is to open in Manhattan, Kansas in early ... partnership and long-term growth of research and development through collaboration with researchers from ...
(Date:8/26/2015)... 2015  The Diabetes Research Institute (DRI), a ... Miller School of Medicine, announced today that the ... for the first time a novel transplant technique ... approved Phase I/II study builds upon decades of ... important first step toward the development of the ...
(Date:8/26/2015)... , Aug. 26, 2015 China Cord Blood ... China,s leading provider of cord blood collection, ... storage services, today announced that the Company has been ... an entity wholly owned by Mr. Yuen Kam, chairman ... acquired the outstanding shares (the "Shares") of  Excellent China ...
(Date:8/26/2015)... ... August 26, 2015 , ... The 2015 Epigenomics & ... stem cell technology start-up company Asymmetrex to share the first report on ... a new biomarker for counting adult tissue stem cells. , With a name like ...
Breaking Biology Technology:MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 3Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 2Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 3Diabetes Research Institute Successfully Transplants First Patient In Pilot BioHub Trial 4China Cord Blood Corporation Receives Notice of Transactions Regarding its 7% Senior Convertible Notes Due 2017 2China Cord Blood Corporation Receives Notice of Transactions Regarding its 7% Senior Convertible Notes Due 2017 3Asymmetrex Reports Positive Indicators for Crowdsourcing Campaign to Evaluate New Biomarker for Counting Adult Tissue Stem Cells for the First Time 2Asymmetrex Reports Positive Indicators for Crowdsourcing Campaign to Evaluate New Biomarker for Counting Adult Tissue Stem Cells for the First Time 3Asymmetrex Reports Positive Indicators for Crowdsourcing Campaign to Evaluate New Biomarker for Counting Adult Tissue Stem Cells for the First Time 4
... , , ... , Roche Applied Science pioneered the ... High Fidelity and,Expand Long Template PCR Systems were the first commercially,available ... respectively. The Expand,High FidelityPLUS PCR System is a next-generation blend,consisting of ...
... , , , , , ... PCR-Grade Nucleotides. These larger pack sizes,combine the best available quality with attractive pricing. , ... Single dNTPs , , ... in 500-mol pack sizes.,The Deoxynucleoside Triphosphate Set, containing all four dNTPs (dATP, dCTP, dGTP, and dTTP) ...
... , , , , ... , A New Tool for the Rapid and Efficient ... , , , Swabs are ... agents (bacteria, fungi, or viruses). After the,swab procedure, the infectious agents are typically,released into a ...
Cached Biology Technology:Combine High Yield, Great Accuracy and the,Prevention of Carry-over Contamination by Using,the Novel Expand High FidelityPLUS PCR System 2PCR-Grade Nucleotides,Larger Pack Sizes Now Available 2S.E.T.S. Swab Extraction Tube System 2
(Date:8/25/2015)... BELLEVUE, Wash. , Aug. 25, 2015  Sarcos ... today it will unveil its "Guardian S" snake robot, ... National Tactical Officers Association Conference on August 30 in ... is the first-ever commercially available energetically autonomous snake robot, ... in-field trials and is protected by more than 50 ...
(Date:8/20/2015)... Aug. 20, 2015 The wearable technology ... are active and healthy. However, wearable technology has ... environment to help improve diagnostic capabilities and therapeutic ... the Wearable Technologies Conference 2015 , where ... for wearables in healthcare.    "Over ...
(Date:8/19/2015)...  VOXX International Corporation (Nasdaq: VOXX ) ... Definitive Agreement to purchase the assets, inclusive of ... EyeLock through an acquiring entity.  Upon consummation of ... in the acquiring entity. The closing of the ...  Expanding on its existing supply chain and distribution ...
Breaking Biology News(10 mins):Sarcos to Debut First-of-its-Kind Snake Robot 2Sarcos to Debut First-of-its-Kind Snake Robot 3Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 2Leaf Healthcare Releases Video from Wearable Technology Conference on New Applications for Wearables in the Hospital Environment 3VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 2VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 3VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 4VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 5
... Soybean production has continued to increase in the Northeast ... the crop and many experienced growers planting alongside corn crops. ... with a corn planter in 30-inch rows instead of 7.5-inch ... a Cornell University scientist, investigated the response of two soybean ...
... L. Boren announced today that OU is establishing an ... expertise to benefit Oklahoma and the nation, including emerging ... led by a national expert, who will be appointed ... million gift from Corix, a multi-utility infrastructure company, which ...
... grant totaling $2.2 million shows how the University of ... using technology to advance the cutting-edge field of personalized ... their genetic make-up. The grant also highlights the ... Institute (CCTSI) to bring scientific discoveries to the bedside ...
Cached Biology News:OU establishes a new water and sustainability institute 2OU establishes a new water and sustainability institute 3Personalizing medicine 2Personalizing medicine 3
...
...
... designed to rapidly and reliably amplify unknown ... Technology. APAgene provides hassle-free, ready-to use components, ... ingredients are provided in each kit. The ... for insert-end amplification of large clones such ...
No description available in Ensembl. Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
Biology Products: