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  

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:9/30/2014)... (PRWEB) September 30, 2014 OriginOil Inc. ... high-speed, chemical-free process to clean up large quantities of ... CEO Riggs Eckelberry reported on the launch of the ... a site provided by partner STW Resources . ... 1000 barrels per day (bpd) and achieved a 99.8% ...
(Date:9/30/2014)... BioHealth Innovation, Inc. (BHI), a ... and increasing access to early-stage funding in ... Tania Fernandez , Ph.D., has joined the BHI ... a member of the management team for a new ... million in seed and early-stage equity investments to therapeutics, ...
(Date:9/30/2014)... September 30, 2014 iLab Solutions announced ... Benchmarking study which focuses on core facility operations, ... core managers face today. , In its 4th year ... of note is the year-over-year decrease in the percentage ... appear to be feeling the constraints of this trend. ...
(Date:9/30/2014)... The custom stainless steel fabrication company HOLLOWAY AMERICA ... Boston Area Chapter of ISPE (International Society for Pharmaceutical ... Wed., Oct. 1 at Gillette Stadium Clubhouse in Foxborough, ... ISPE Boston’s long history, with more than 375 exhibitors ... , HOLLOWAY AMERICA President David Simpson is looking forward ...
Breaking Biology Technology:OriginOil, Inc. Report to Shareholders: Blue Gold in West Texas 2Seasoned Life Sciences Venture Capitalist Tania Fernandez Joins BHI to Help Manage New BioHealth Gap Fund 2iLab Solutions Announces the Results of the 2014 Core Facility Benchmarking Study 2iLab Solutions Announces the Results of the 2014 Core Facility Benchmarking Study 3HOLLOWAY AMERICA to Exhibit at ISPE Boston Product Show 2014 2HOLLOWAY AMERICA to Exhibit at ISPE Boston Product Show 2014 3
... Oncolytics Biotech Inc.,("Oncolytics") (TSX:ONC, NASDAQ:ONCY) announced today ... of its manufacturing process for,REOLYSIN(R) to commercial ... production and downstream processing,development was undertaken by ... located in Montreal, Canada., "Our existing ...
... Industry Expertise to Pathwork Following FDA ... Clearance and $20M Fundraising Round, SUNNYVALE, ... on oncology, announced today the,appointment of two key positions within ... Mark McDonough as Vice,President of US Sales. These professionals bring ...
... CJPS Enterprises, LLC, (http://www.CJPS-Enterprises.com ), the operator ... ) is announcing a new service available,to ... business, or looking to,invest in Michigan companies ... existing resources available on the Michigan Life ...
Cached Biology Technology:Oncolytics Biotech Inc. Completes Initial Scale Up of Manufacturing Process for REOLYSIN(R) to Commercial Scale 2Pathwork Diagnostics Announces Key Additions to Management Team 2The Michigan Life Sciences Pipeline Announces 'The Funding Place(TM)' and Other Resources to Connect Investors and Startups 2
(Date:9/30/2014)... 30, 2014) People who suffer from asthma may ... control their asthma besides properly taking medications and avoiding ... in the Annals of Allergy, Asthma and Immunology ... Allergy, Asthma and Immunology (ACAAI), asthma sufferers can learn ... The woman described in the Annals article improved her ...
(Date:9/29/2014)... ramosum , coupled with a high-fat diet, may cause animals ... mBio , the online open-access journal of the American ... German Institute of Human Nutrition Potsdam-Rehbruecke in Nuthetal observed that ... gained weight when fed a high-fat diet. Mice that did ... when consuming a high-fat diet, and mice that had ...
(Date:9/29/2014)... 29, 2014 -- Plants have a symbiotic relationship ... pants extract nutrients and defend against invaders ... fruits and vegetables. Now, scientist have discovered that ... seeds; thus ensuring that sprouting plants are colonized ... of Notre Dame, presented their findings today at ...
Breaking Biology News(10 mins):Asthma symptoms kicking up? Check your exposure to air pollution 2Gut bacteria promote obesity in mice 2Plants prepackage beneficial microbes in their seeds 2
... volume transmitted every second with every quick eye movement ... Ruhr-Universitt Bochum (RUB) and the University of Osnabrck describe ... visual cortex, the entry point for the visual information ... ". Deploying novel optical imaging methods, they demonstrated that ...
... University researchers have shown natural radioactivity within DNA can ... mutation. The research, recently published in Biochimica ... looked at natural radioactivity within human DNA on the ... bodies as well as in every living organism across ...
... explanation for how the most common strain of methicillin-resistant ... prominence. Research published in mBio , the online ... that the strain recently acquired a number of genes ... and thrive on the skin where other strains of ...
Cached Biology News:Neurons subtract images and use the differences 2Neurons subtract images and use the differences 3Radioactivity muddles the alphabet of DNA 2MRSA strain gained dominance with help from skin bacteria 2
Shake 'n' Stack Oven - New Model (includes 10 bottle capacity rotisserie, adjustable feet, drip tray, manual PLUS Shaker Platform)...
... DNA Polymerase I from ... DNA polymerase. The enzyme also ... activities.1 The 5'?3' exonuclease activity ... nicks and gaps in the ...
DNase I (Deoxyribonuclease I) digests single- and double-stranded DNA to oligodeoxyribonucleotides. Ribonuclease activity has been reduced to non-detectable levels....
... thymus Description: Topoisomerase I relaxes both ... breakage and rejoining of phosphodiester bonds (1,2) . ... to be differentiated by a single nucleotide pair ... active in the absence of Mn 2+ ...
Biology Products: