Navigation Links
Exotic particles, chilled and trapped, form giant matter wave
Date:5/25/2012

Physicists have trapped and cooled exotic particles called excitons so effectively that they condensed and cohered to form a giant matter wave.

This feat will allow scientists to better study the physical properties of excitons, which exist only fleetingly yet offer promising applications as diverse as efficient harvesting of solar energy and ultrafast computing.

"The realization of the exciton condensate in a trap opens the opportunity to study this interesting state. Traps allow control of the condensate, providing a new way to study fundamental properties of light and matter," said Leonid Butov, professor of physics at the University of California, San Diego. A paper reporting his team's success was recently published in the scientific journal Nano Letters.

Excitons are composite particles made up of an electron and a "hole" left by a missing electron in a semiconductor. Created by light, these coupled pairs exist in nature. The formation and dynamics of excitons play a critical role in photosynthesis, for example.

Like other matter, excitons have a dual nature of both particle and wave, in a quantum mechanical view. The waves are usually unsynchronized, but when particles are cooled enough to condense, their waves synchronize and combine to form a giant matter wave, a state that others have observed for atoms.

Scientists can easily create excitons by shining light on a semiconductor, but in order for the excitons to condense they must be chilled before they recombine.

The key to the team's success was to separate the electrons far enough from their holes so that excitons could last long enough for the scientists to cool them into a condensate. They accomplished this by creating structures called "coupled quantum wells" that separate electrons from holes in different layers of alloys made of gallium, arsenic and aluminum.

Then they set an electrostatic trap made by a diamond-shaped
'/>"/>

Contact: Susan Brown
scinews@ucsd.edu
858-246-0161
University of California - San Diego
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. New study confirms exotic electric properties of graphene
2. Exotic behavior when mechanical devices reach the nanoscale
3. Food and Beverage Giant Joins Kannapolis Research Center
4. Bay Area Youth to Represent ALS Patients at Giants and Angels Baseball Games on July 4th
5. Nevada Burning Man Festival Sees Giant Aerial Marijuana Bud Banner That Protests Hydroponics Hijacking
6. Reuters Highlights NutraPharma Financial Giant Predicts NutraPharma (OTCBB: NPHC) Shares Likely to Outperform the Market
7. Abt Electronics Becoming the Green Giant of Independent Retailers
8. VIASPACE CEO Discusses Giant King Grass at Industrial Biotechnology Congress in China
9. Trouble with sputter? Blame giant nanoparticles
10. Nanowires exhibit giant piezoelectricity
11. Carbon nanotube muscles generate giant twist for novel motors
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Exotic particles, chilled and trapped, form giant matter wave
(Date:5/26/2015)... REDWOOD CITY, California and HILDEN, ... -- QIAGEN N.V. (NASDAQ: QGEN ... commercial launch of its QIAGEN Clinical Insight ® ... clinical testing labs to interpret and report on ... first two supported applications for the bioinformatics platform ...
(Date:5/26/2015)... Global Stem Cells Group and Stem ... first cellular and regenerative medicine symposium in Barcelona Spain ... stem cell training class Oct. 10. The event will ... of Therapeutic Confrontations (CONFTERA) in Barcelona. , In ... medicine and recent advances in cellular therapies, Global Stem ...
(Date:5/26/2015)... 26, 2015 Leading Regenerative Veterinary ... a long-term relationship with Veterinary Growth Partners, a ... members to provide access to vital services to ... count VGP as a dedicated partner in bringing ... nationwide. Concentrating and using stem cells natural abilities ...
(Date:5/26/2015)... , May 26, 2015 /PRNewswire/ - Fluorinov Pharma (Fluorinov), ... Luke M. Beshar to its Board of ... and pharmaceutical industry expertise as Fluorinov accelerates its clinical ... Fluorinov team, it is a pleasure to welcome Luke ... significant impact on the strategy, financial strength and success ...
Breaking Biology Technology:QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 2QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 3QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 4QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 5Stem Cell Training, Inc. Announces First European Symposium on Cellular and Regenerative Medicine 2Stem Cell Training, Inc. Announces First European Symposium on Cellular and Regenerative Medicine 3VetStem Biopharma & Veterinary Growth Partners Join Forces to Increase Member Veterinary Hospital Revenue Through Cutting Edge Medical Offering 2VetStem Biopharma & Veterinary Growth Partners Join Forces to Increase Member Veterinary Hospital Revenue Through Cutting Edge Medical Offering 3Luke M. Beshar Appointed to Fluorinov Pharma Board of Directors 2Luke M. Beshar Appointed to Fluorinov Pharma Board of Directors 3
... BETHESDA, Md., Sept. 16 American Capital Ltd. ... 15, it completed the sale of its portfolio company Axygen ... Inc., to Corning Incorporated for approximately $400 million. The ... fee income, from the equity invested by American Capital,s affiliated ...
... , , COLUMBIA, Md., Sept. 16 Martek ... David M. Pernock to its Board of Directors. , ... extensive background in the commercialization of pharmaceutical products, having served from ... (GSK), one of the world,s leading healthcare companies. In his most ...
... HEIDELBERG, Germany, September 16 , ... Drug Targets in Wnt Pathway , ... antagonizes Wnt signalling"** is now available online in,Nature. , ... proteomics,platform was used to identify a small molecule which plays ...
Cached Biology Technology:American Capital Receives $182 Million In Proceeds From Sale of Axygen Bioscience 2American Capital Receives $182 Million In Proceeds From Sale of Axygen Bioscience 3American Capital Receives $182 Million In Proceeds From Sale of Axygen Bioscience 4Martek Announces Addition to Its Board of Directors 2Cellzome Technology Used to Unravel Novel Regulatory Mechanism in Cancer Signaling Pathway 2
(Date:5/8/2015)... -- Synaptics Inc. (NASDAQ: SYNA ), the leading developer ... executive management team will present at the following investor events: ... Conference Date: May 18, 2015 Time: 10:40am ET ... Cowen and Company Technology, Media & Telecom ... New York Palace Hotel, New York, NY ...
(Date:4/27/2015)... -- NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or ... growing mobile commerce market, announces that its Wocket® Smart ... week of May, 2015 and will be fulfilling all ... Gino Pereira , Chief Executive Officer said, ... Wocket® enters the consumer market. We would like to ...
(Date:4/17/2015)... 17, 2015 Increasing ... technological advancement to drive biometric systems market in ...   According to a recently released ... &  Opportunities, 2020 ", biometric systems market in ... growth at CAGR of over 22% through 2020. ...
Breaking Biology News(10 mins):Synaptics to Present at Upcoming Investor Conferences 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 2Wocket, the Smartest Wallet You Will Ever Own, Announces Shipment to Pre-order Customers 3Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 2Saudi Arabia Biometric Systems Market to Grow at 22% Through 2020, Says TechSci Research 3
... a new understanding of how male puberty begins. ... known as SMAD3 and the rate at which it is ... the Faculty of Medicine, Nursing and Health Sciences have discovered ... in faster maturation than the norm, and an inability to ...
... genius is a byproduct of good genes or good environment ... an entirely new direction. University of Alberta researcher Marty Mrazik ... of a natural hormone. Mrazik, a professor in the ... Rider University in the U.S., have published a paper in ...
... a team of Spanish and Greek researchers, and published in the ... than 30% of the hake products sold in Spain and Greece ... Africa are being labelled as American or European, meaning consumers pay ... the University of Oviedo (Spain) and co-author of the study, tells ...
Cached Biology News:Monash scientists uncover a new understanding of male puberty 2U of A researcher questions whether genius might be a result of hormonal influences 2Around 40 percent of hake is mislabeled 2
50 assays. Provides an easy system for rapid separation of cytosol and particulate fractions that are compatiable with downstream studies....
Eliminate electrical interference from any analog signal, without filtering. Ideal for electrophysiology applications like EKG, EMG, and EEGs. Removes 50/60hz noise and harmonics caused by grounding ...
... 400 Spun Columns, 10. *SizeSep 400 Spun ... 400 base pairs in length. - ... and pre-equilibrated in distilled water containing 0.15% Kathon ... ~ 400 base pairs. *Extremely useful ...
... CyScribe GFX Purification Kit, 25 ... CyDye labeled cDNA probesProvides efficient removal ... from labeling reactions with superior yields ... for the purification of cDNA labeled ...
Biology Products: