Navigation Links
Seeing the quantum in chemistry: JILA scientists control chemical reactions of ultracold molecules
Date:2/11/2010

re diverse insights and applications than ultracold atoms, which scientists have deftly manipulated for more than 20 years.

Scientists have long known how to control the internal states of molecules, such as their rotational and vibrational energy levels. In addition, the field of quantum chemistry has existed for decades to study the effects of the quantum behavior of electrons and nucleiconstituents of molecules. But until now scientists have been unable to observe direct consequences of quantum mechanical motions of whole molecules on the chemical reaction process. Creating simple molecules and chilling them almost to a standstill makes this possible by presenting a simpler and more placid environment that can reveal subtle, previously unobserved chemical phenomena.

By precisely controlling the ultracold molecules' internal stateselectronic energy levels, vibrations, rotations and nuclear spin (or angular momentum)while also controlling the molecular motions at the quantum level, JILA scientists can study how the molecules scatter or interact with each other quantum mechanically. They were able to observe how the quantum effects of the molecule as a whole dictate reactivity. This new window into molecular behavior has allowed the observation of long-range interactions in which quantum mechanics determines whether two molecules should come together to react or stay apart. Thus the JILA work pushes the field in new directions and expands the standard conception of chemistry.

The JILA quantum chemistry experiments were performed with a gas containing up to 1 trillion molecules per cubic centimeter at temperatures of a few hundred billionths of a Kelvin (nanokelvins) above absolute zero (minus 273 degrees Celsius or minus 459 degrees Fahrenheit). Each molecule consists of one potassium atom and one rubidium atom. The molecules have a negative electric charge on the potassium side and a positive charge on the rubidium side, so they can
'/>"/>

Contact: Laura Ost
laura.ost@nist.gov
303-497-4880
National Institute of Standards and Technology (NIST)
Source:Eurekalert  

0

GOOD

Page: 1 2 3 4

Related biology technology :

1. Imaging quantum entanglement
2. Yale scientists make 2 giant steps in advancement of quantum computing
3. Quantum device traps, detects and manipulates the spin of single electrons
4. Argonne researcher studies what makes quantum dots blink
5. Harvard University engineers demonstrate quantum cascade laser nanoantenna
6. Stanford researchers hear the sound of quantum drums
7. Physicists discover how fundamental particles lose track of quantum mechanical properties
8. Quantum computing breakthrough arises from unknown molecule
9. Physicists tweak quantum force, reducing barrier to tiny devices
10. Light touch: Controlling the behavior of quantum dots
11. First tunable, noiseless amplifier may boost quantum computing, communications
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Seeing the quantum in chemistry: JILA scientists control chemical reactions of ultracold molecules
(Date:5/17/2013)... , May 17, 2013  Insero Health, Inc., ... needs in epilepsy and related neurological disorders, is today ... its lead compound INS001 in patients with drug-resistant epilepsy.  ... and Device Trials (AED) Xll meeting by Dr. ... and Chairman of Insero,s Scientific Advisory Board.  In this ...
(Date:5/17/2013)... The paradigm of ‘one drug, one target’ has ... predict the adverse and therapeutic effects of a drug. ... Biology at the Genomics Laboratory, Covance, will discuss the ... when used as part of the QC process. Additionally, ... to identify key clinical targets even in complex data ...
(Date:5/17/2013)... May 17, 2013 Rust removal is one ... non-metal home items could be damaged. To help rust contractors ... of its no-scrubbing rust remover it called Rusterizer. ... available with 10% discount. , My Cleaning Products explained that ... them or by staining them. The first one, it ...
(Date:5/17/2013)... 2013 Tooth decay is an epidemic in ... of the disease. The World Health Organization says that worldwide, ... adults have cavities. What are the long-term effects of this ... strong connection between the oral bacterial imbalance and serious systemic ... rampant, yet it is also 100% preventable? Answer: there has ...
Breaking Biology Technology:Insero Health Reports Positive Data on Phase I Trial of Novel Therapy for Drug-resistant Epilepsy 2Organic-Based Rust Remover Cuts Down Price by 10%, My Cleaning Products Details Mechanics How to Get the Discount 2Seeing the Future: How a Revolutionary New Bacterial Screening Device Can Predict a Patient’s Future for Tooth Decay 2Seeing the Future: How a Revolutionary New Bacterial Screening Device Can Predict a Patient’s Future for Tooth Decay 3
... Milwaukee, Wis. - To meet a growing bioinformatics challenge, ... from the Medical College of Wisconsin and Children's ... worldwide genetic tracking of human and animal influenza viruses. ... and health officials since the onset of the avian or ...
... enough if the robotics engineering team from Benilde-St. Margaret's ... a national championship against other high-school teams. , ,It's ... students. , ,Led by instructor Timothy Jump, students from ... the 2005 U.S. Open RoboCup. Using robots to navigate ...
... ways, Promega Corp . has given Northwestern Mutual ... to those outside the life-science realm, that is. Inside the ... as a constant churn of innovation takes place. Thus far, ... 1,500 research products, including 130 new product innovations since 2002. ...
Cached Biology Technology:Medical College team creates website for tracking flu 2Medical College team creates website for tracking flu 3Silver linings in the cloud: America's dearth of STEM students 2Silver linings in the cloud: America's dearth of STEM students 3Silver linings in the cloud: America's dearth of STEM students 4Promega Corporation: Wisconsin's quiet innovator 2Promega Corporation: Wisconsin's quiet innovator 3Promega Corporation: Wisconsin's quiet innovator 4Promega Corporation: Wisconsin's quiet innovator 5
(Date:5/17/2013)... Sustainable Global Logistics Operations) is aiming to cut CO2 ... intermodal loading systems and the boosting of intelligent systems ... with experience in the logistics sector and in supply ... a duration of three and a half years. , ... components and ontologies shared by the users, objects and ...
(Date:5/17/2013)... of American Societies for Experimental Biology (FASEB) released a ... (NIH) funding trends highlighting the devastating impact of sequestration ... FASEB analysis follows a May 15th Senate Appropriations Committee ... testified that the $1.6 billion cut the agency sustained ... substantial impact on the scientific community." , According ...
(Date:5/16/2013)... 17, 2013) Illustrating a commitment to the ... Gastroenterological Association (AGA) Research Foundation has announced the ... Fellowship Award recipients. Supported by the National Institute ... this new award helps underrepresented minority students to ... nutrition research. , "By establishing this new award, ...
Breaking Biology News(10 mins):New logistics services that will cut energy consumption and CO2 emissions 2Underrepresented minority students receive fellowships in digestive disease and nutrition research 2
... holiday dash is on: Men tend to rush in for ... color, texture and price. The hunting and gathering ritual ... the shopping behavior of your partner can help relieve stress ... of Michigan. Daniel Kruger of the U-M School of ...
... A graduate student who returned to school after suffering ... top honors at the 40th Semiannual Student Symposium at ... Houston., Melissa Gooch, a graduate student in physics, received ... discovered iron pnictide superconductors. , Debtanu De, also a ...
... Missouri Botanical Garden will join the Inter-American Institute for ... the impacts of climate change on biodiversity in the ... tropical Andean countries of Bolivia, Colombia, Ecuador and Peru ... which can advise future decision making, adaptation measures and ...
Cached Biology News:Graduate physics students wins top honors in superconductivity symposium 2New study to examine effects and threats of climate change on plants and animals in Andes 2
... are used to study co-translational and ... events such as signal peptide cleavage, ... can be examined by the translation ... in the presence of these microsomal ...
... you need to make your strain of ... Take advantage of Lucigen’s unrivalled expertise in ... Cell Service offers: Chemically competent ... Fast turnaround Quality ...
... products ATP-Free using Mo Bio luciferase assay. Mo ... service that will allow you to certify your ... and enable you to deliver them to your ... ATP detection limit is 3.5 x 10-12 /l, ...
Glucagon-like peptide-1 (GLP-1 (1-36) amide)...
Biology Products: