Navigation Links
Pushing the cold frontier in an orderly fashion

Physicists are continually reaching new lows as they reduce the temperatures of samples in their laboratories. But even nano-kelvins are not low enough to overcome the entropy (a measure of the disorder in a system) that stands between them and the discovery of exotic states of ultra-cold matter. Now physicists at two Italian universities have developed a technique that siphons entropy out of a collection of atoms in much the same way that a kitchen refrigerator removes heat from the food stored inside. The new method is described in Physical Review Letters and highlighted in the September 28 issue of Physics (

The system that Jacopo Catani (University of Florence) and colleagues assembled begins with a cloud of potassium and rubidium atoms held in a magnetic trap. They selected a laser with a wavelength of light that interacted with the potassium atoms, but had little effect on the rubidium atoms. They then compressed the potassium atom cloud by focusing the laser to a point in the trap. Compressing a gas usually increases its temperature, but the surrounding rubidium kept things in check, allowing the researchers to hold the temperature roughly constant as entropy was shifted from the potassium to the rubidium atoms.

The novel technique should work with other combinations of atoms as well, offering researchers a new tool to aid them in their pursuit of physics at ultra-low temperatures and entropies.


Contact: James Riordon
American Physical Society

Page: 1

Related biology technology :

1. DOE awards $377 million in funding for 46 energy frontier research centers
2. Stemline Therapeutics CEO to Present at IBCs New Frontiers in Cancer Drug Development Conference
3. ChanTest Awarded $4.8 Million Through the Ohio Third Frontier Research and Commercialization Program
4. Cordex Pharma Presents New Frontiers in Cardiovascular Medicines on January 29
5. Therapure Biopharma Inc. Announces Manufacturing Agreement with Biomedical Frontiers Incorporated -- Contract will Support Phase II Trials for Thalassemia Treatment
6. The frontiers of nanotechnology
7. SimBioSys Utilizes Revolutionary Hardware Technology to Open New Frontiers in Molecular Modeling
8. Gynecologic Oncologist, With Board Certification in GYN Oncology, OB/GYN, and Surgery Offers Women With Cancer the Newest Treatment Frontier: the Surgical Robot
9. MultiVu Video Feed: Allergan, Inc. Partners With "Project Runway" Designer Kara Saun and Gen Art Fresh Faces In Fashion to Raise Awareness About Excessive Underarm Sweating
Post Your Comments:
Related Image:
Pushing the cold frontier in an orderly fashion
(Date:11/24/2015)... ... November 24, 2015 , ... ... the year and one of the premier annual events for pharmaceutical manufacturing: 2015 ... 8–11 November 2015, where ISPE hosted the largest number of attendees in more ...
(Date:11/24/2015)... , November 24, 2015 ... new market research report "Oligonucleotide Synthesis Market by Product ... (PCR, Gene Synthesis, Diagnostic, DNA, RNAi), End-User (Research, Pharmaceutical ... published by MarketsandMarkets, the market is expected to reach ... in 2015, at a CAGR of 10.1% during the ...
(Date:11/24/2015)... November 24, 2015 SHPG ) announced today ... the Piper Jaffray 27 th Annual Healthcare Conference in ... 2015, at 8:30 a.m. EST (1:30 p.m. GMT). --> ... Officer, will participate in the Piper Jaffray 27 th Annual ... on Tuesday, December 1, 2015, at 8:30 a.m. EST (1:30 p.m. ...
(Date:11/24/2015)... QUEBEC CITY , Nov. 24, 2015 /PRNewswire/ ... (the "Company") announced today that the remaining 11,000 ... Common Share Purchase Warrants (the "Series B Warrants") ... agreement were exercised on November 23, 2015, which ... Common Shares.  After giving effect to the issuance ...
Breaking Biology Technology:
(Date:11/12/2015)... BOSTON , Nov. 12, 2015  A golden ... for Duchenne muscular dystrophy (DMD) has provided a new ... Boston Children,s Hospital, the Broad Institute of MIT and ... Brazil . Cell, ... some dogs "escape" the disease,s effects. The Boston Children,s ...
(Date:11/10/2015)... , Nov. 10, 2015  In ... on the basis of product, type, application, ... included in this report are consumables, services, ... report are safety biomarkers, efficacy biomarkers, and ... this report are diagnostics development, drug discovery ...
(Date:11/4/2015)... New York , November 4, 2015 ... to a new market report published by Transparency Market ... Share, Growth, Trends and Forecast 2015 - 2022", the global ... of US$ 30.3 bn by 2022. The market is ... the forecast period from 2015 to 2022. Rising security ...
Breaking Biology News(10 mins):