Navigation Links
NIST mechanical micro-drum cooled to quantum ground state
Date:7/6/2011

be coaxed into the quantum ground state, reported by California researchers last year, the NIST drum has a higher quality factor, so it can hold a beat longer, and it beats at a much slower rate, or lower frequency. As a result, individual packets of energy, or quanta, can be stored 10,000 times longer (about 100 microseconds)long enough to serve as a temporary memory for a quantum computer and a platform for exploring complex mechanical and quantum states. In addition, the drum motion is 40 times greater per quantum, offering the possibility, for instance, of generating larger entangled "cat states"objects that are in two places at once and also entangled, with properties that are linked even at a distancefor tests of theories such as quantum gravity. The NIST apparatus also allows researchers to measure the position of the drum directly, which is useful for force detection, with a precision closer than ever to the ultimate limit allowed by quantum mechanics.

To make engineered bulk objects obey the rules of quantum mechanics, typically observed only in atoms and smaller particles, scientists must lower an object's temperature beyond the reach of conventional refrigeration. The California researchers were able to use a passive cryogenic refrigeration technique to chill their high-frequency device enough to reach the ground state, avoiding the need for specialized techniques.

NIST's drum required the use of "sideband cooling" to reach much colder temperatures, taking advantage of strong interactions between the drum and the microwaves. This is the same idea as laser cooling of individual atoms, first demonstrated at NIST in 1978.*** Now a basic tool of atomic physics worldwide, laser cooling enabled many significant advances by allowing researchers to reduce the vibrational motion of trapped atoms to less than a single quantum. Sideband refers to a collection of light particles (photons) just above or below a specific target fr
'/>"/>

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

Page: 1 2 3 4

Related biology technology :

1. Global Micro-Electromechanical Systems (MEMs) Devices Industry
2. Exotic behavior when mechanical devices reach the nanoscale
3. Progress in the Development of Mechanical Circulatory Support Devices for Children to be Presented at International Heart and Lung Transplant Meeting
4. NIST electromechanical circuit sets record beating microscopic drum
5. UCSB physicists challenge classical world with quantum-mechanical implementation of shell game
6. Nanomechanical Testing in Materials Research and Development
7. Using new materials to make more reliable nanoelectromechanical systems
8. Rensselaer mechanical engineers win first place at ASME student manufacturing design competition
9. Understanding mechanical properties of silicon nanowires paves way for nanodevices
10. Catching the lightwave: Nano-mechanical sensors wired by photonics
11. Clemson researchers advance nanoscale electromechanical sensors
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
NIST mechanical micro-drum cooled to quantum ground state
(Date:8/20/2014)... measuring vibrational motion of a single molecule with a ... a single molecule differs from the behaviour of larger ... the University of California, Irvine, where post-doctoral researcher Eero ... visiting fellow under professor Vartkess A. Apkarian, whose team ... by Professor Eric O. Potma. The results of the ...
(Date:8/20/2014)... -- PAREXEL International Corporation (NASDAQ: PRXL ) announced ... Healthcare Conference in New York.  Ingo Bank , ... making a presentation on PAREXEL and discussing business developments ... A live webcast of the discussion will ... at www.PAREXEL.com in the Upcoming Events portion ...
(Date:8/20/2014)... nerves in your ear could improve the health of ... the University of Leeds used a standard TENS machine ... electrical pulses to the tragus, the small raised flap ... of the ear canal. , The stimulation changed the ... reducing the nervous signals that can drive failing hearts ...
(Date:8/19/2014)... Shimadzu Scientific Instruments has introduced ... Nexera-i, adding to the company’s extensive line-up of ... intuitive operating environment, and full automation, the i-Series ... for conventional to ultra-high-speed analysis. , ... design so users can begin building the lab ...
Breaking Biology Technology:Seeing a molecule breathe 2PAREXEL International To Present At Baird Healthcare Conference 2'Tickling' your ear could be good for your heart 2Shimadzu’s New i-Series Integrated Liquid Chromatography Systems Provide Laboratories Wider Range of Analytical Capabilities 2Shimadzu’s New i-Series Integrated Liquid Chromatography Systems Provide Laboratories Wider Range of Analytical Capabilities 3
... -- China Medical,Technologies, Inc. (the ,Company,) (Nasdaq: ... company that develops, manufactures and markets advanced ... focused ultrasound,tumor therapy system, today announced that ... ,Acquisition,) of the entire interest in,Beijing Bio-Ekon ...
... Broadband Wireless Technology, Will, Provide Free Internet Access to Kindergartens, ... ... PETACH TIKVA, Israel, January 8 012,Smile.Communications (NASDAQ: SMLC ... announced that it has joined,with Israel,s Ministry of Communications, Intel ...
... team of U.S., Israeli and German scientists used computational ... role in human cell division and to identify more ... pattern of activation in cancer cells., Malignant cells have ... in cell cycle gene activation in normal and malignant ...
Cached Biology Technology:China Medical Technologies Completes Acquisition of BBE 2Israel's Ministry of Communications, 012 Smile.Communications, Intel and Alvarion Join in Launching WiMAX Initiative for Sderot, a City in the Western Negev 2Israel's Ministry of Communications, 012 Smile.Communications, Intel and Alvarion Join in Launching WiMAX Initiative for Sderot, a City in the Western Negev 3Israel's Ministry of Communications, 012 Smile.Communications, Intel and Alvarion Join in Launching WiMAX Initiative for Sderot, a City in the Western Negev 4Israel's Ministry of Communications, 012 Smile.Communications, Intel and Alvarion Join in Launching WiMAX Initiative for Sderot, a City in the Western Negev 5International team identifies 480 genes that control human cell division 2International team identifies 480 genes that control human cell division 3
(Date:8/19/2014)... made to decrease China,s increasing caesarean section rate, suggests ... BJOG: An International Journal of Obstetrics and Gynaecology (BJOG) ... delivery rates in the world. Of 16 million babies ... the exact rate is not known, the current Chinese ... caesarean rates ranging from 36% to 58%. However, before ...
(Date:8/19/2014)... week,s Eos: Long-Term Ecological Research and Network-Level Science, , ... a wide range of ecosystems was responding to global ... particularly powerful if it coupled multiple decades of information ... experiments and models from dozens of different ecosystem types. ... the Long-Term Ecological Research (LTER) Network, which will soon ...
(Date:8/19/2014)... devised a new implantable tissue scaffold coated with bone ... weeks. When applied to bone injuries or defects, this ... bone that looks and behaves just like the original ... a dramatic improvement over the current standard for treating ... of the patient,s body a painful process that ...
Breaking Biology News(10 mins):Is China's 50 percent cesarean section delivery rate too high? 2Is China's 50 percent cesarean section delivery rate too high? 3This week from AGU: Long-term ecological research, predicting cholera outbreaks 2Engineering new bone growth 2Engineering new bone growth 3
... 1, 2011 A pair of University of Houston ... develop new methods for treating the most severe form ... recently awarded by the Cancer Prevention and Research Institute ... Jan-ke Gustafsson, Robert A. Welch Professor in UH,s biology ...
... CORVALLIS, Ore. Engineers at Oregon State University ... adhesives in the production of low-temperature, microchannel heat ... promising technology much less expensive for many commercial ... needed, researchers say, in next-generation computers, lasers, consumer ...
... April 1, 2011 Avila Therapeutics, Inc., a biotechnology ... publication of a scientific review article in ... Covalent Drugs" ( www.nature.com/reviews/drugdisc , Vol. 10, April 2011, ... for covalent drugs and how structural bioinformatics coupled with ...
Cached Biology News:Jan-Åke Gustafsson leads team with $5.2M for prostate cancer research 2Advance in microchannel manufacturing opens new industry applications 2New opportunities for covalent drugs published by Avila scientists 2
High-throughput DNA preparation and end sequencing of BAC libraries. 3730xl DNA sequencers. LIMS tracking utilizing Geospiza's Finch system. Full-length BAC sequencing also available. Our expertise h...
... is the experimental process of determining the ... automated DNA Sequencing is based on Sangers ... which allows cycle sequencing reactions. The resulting ... a capillary instrument controlled by a computer ...
... 192 ) The antibody is preadsorbed to remove ... antibody buffered aqueous glycerol solution A ... Mg 2+ and Ca 2+ ), pH ... BSA (IgG, protease free) and 0.05% sodium azide ...
... The Bio-Plex maintenance, calibration, ... a custom 96-well plate used ... and calibration procedures using the ... MCV plate is for use ...
Biology Products: