Navigation Links
Scientists observe quantum vortices in cold helium droplets
Date:8/21/2014

etectors that can even register individual photons and can determine their energy very precisely," stresses Benjamin Erk of CFEL. "The detectors create a series of 120 images per second while doing so."

"The analyses of the images shows that a surprising number of drops were not spherical as expected, but were pulled length-wise by rapid rotation," says Rolles. "In fact, some drops possessed more of a shape resembling a thick wheel with two almost parallel sides." The rotation stems from the expansion of the liquid helium inside the nozzle, through which they enter the experimental chamber. The droplets rotated up to fourteen million times per second far faster than a normal round drop could withstand according to the laws of classical physics.

Due to the rapid rotation, tiny "quantum vortices" formed within the nanodroplets, reminiscent of a miniature whirlpool swirling around a bathtub drain. This phenomenon had already been observed in larger units of superfluid helium, but has just now been detected in nanodroplets for the first time. As observed earlier, the vortices form a regular lattice. "In nanodroplets, the quantum vortices are surprisingly 100,000 times more densely packed than in the larger samples of superfluid helium that were previously studied," says Vilesov.

"What we have observed in this experiment is really surprising," stresses co-lead Christopher Bostedt of SLAC. The experiment's third co-lead, Oliver Gessner from the Lawrence Berkeley National Laboratory, adds: "Now that we have shown that we can detect and characterize quantum rotation in helium nanodroplets, it will be important to understand its origin and, ultimately, to try and control it."


'/>"/>

Contact: Thomas Zoufal
presse@desy.de
49-408-998-1666
Deutsches Elektronen-Synchrotron DESY
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Scientists defuse the Vietnam time bomb
2. Singapore scientists lead human embryonic stem cell study
3. Sheffield scientists shine a light on the detection of bacterial infection
4. Nanowiggles: Scientists discover graphene nanomaterials with tunable functionality in electronics
5. Scientists solve mystery of colorful armchair nanotubes
6. iBioSeminars and iBioMagazine: Free, Online Biology Seminars and Short Talks by Leading Scientists
7. Chinese Scientists Zhen-Yi Wang and Zhu Chen Awarded 7th Annual Szent-Gyorgyi Prize for Progress in Cancer Research
8. Scientists decode brain waves to eavesdrop on what we hear
9. Receptos Scientists Publish Determination of a High Resolution Sphingosine 1-Phosphate Receptor 1 Structure in Science
10. Scientists learn how to out run damage with imaging technique
11. Design eye for the science guy: Drop-in clinic helps scientists communicate data
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/1/2015)... ... July 01, 2015 , ... The next-generation sequencing (NGS) clinical market ... including the molecular diagnostics industry. BCC Research reveals in its new report that the ... test costs, and a growing need for better diagnostics as part of a molecular ...
(Date:7/1/2015)... , July 1, 2015  Axovant Sciences Ltd. ... on the treatment of dementia, today announced that ... July 22 at 5:45 p.m. EDT following its ... Association International Conference 2015 (AAIC). ... , Dr. Lawrence Friedhoff , Chief ...
(Date:7/1/2015)... PHILADELPHIA , July 1, 2015 ... technology will ... s evidence-based clinical s olutions suite ... scientific, technical and medical information products and services, announced today ... -based clinical decision support (CDS) technology company. InferMed,s ...
(Date:7/1/2015)...  UCB, a multinational biopharmaceutical company, and Genpact ... designing, transforming, and running intelligent business operations, have ... their close collaboration in driving transformation that achieved ... (GBS) finance organization. The Aecus Innovation ... together effectively to embrace the innovative promise of ...
Breaking Biology Technology:NGS-Based Diagnostics, the ‘Must-Have Platform’, Sends Market Segment CAGRs Soaring According to BCC Research 2NGS-Based Diagnostics, the ‘Must-Have Platform’, Sends Market Segment CAGRs Soaring According to BCC Research 3Axovant Sciences To Host Investor Briefing And Live Webcast During AAIC 2015 Meeting 2Axovant Sciences To Host Investor Briefing And Live Webcast During AAIC 2015 Meeting 3Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 2Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 3Elsevier Acquires InferMed, Provider of Clinical Decision Support Technology 4UCB and Genpact Receive Aecus Innovation Award for Success in Global Business Services 2UCB and Genpact Receive Aecus Innovation Award for Success in Global Business Services 3UCB and Genpact Receive Aecus Innovation Award for Success in Global Business Services 4UCB and Genpact Receive Aecus Innovation Award for Success in Global Business Services 5
... Middleton, Wis. Need a new look on life? ... that. The Eyetop Centras are multimedia sunglasses with a built-in ... TV while mowing the lawn or riding the subway reality. ... center of one lens which allows users to watch video ...
... Eau Claire, Wis. - Chippewa Valley Technical College ... last week, that CVTC will begin teaching nanotechnology as ... prepare for sweeping changes and opportunities. , ,Jack Uldrich, ... Group , described a shift of historic proportions brought ...
... MILWAUKEE - SBC Communications and Pabst Farms , ... of Oconomowoc and Town of Summit have reached an ... communications provider for the development. , ,As part of ... of Fiber to the Premises (FTTP) technology to the ...
Cached Biology Technology:Chippewa Valley Embraces Nanotechnology 2Pabst Farms to Test SBCs Fiber-to-the-Premises Technology 2Pabst Farms to Test SBCs Fiber-to-the-Premises Technology 3
(Date:6/23/2015)... DUBLIN , June 22, 2015 ... has announced the addition of the "Body-Worn ... Share, Growth, Trends and Forecast 2014 - 2020" ... report offers strategic analysis of the global body-worn ... market has been segmented on the basis of ...
(Date:6/23/2015)... , June 23, 2015  Crossmatch™, a ... authentication solutions, today announced enhanced functionality of its ... solution.  The enhancements build on the native ... DigitalPersona Altus platform and provide expanded mobile ... In today,s environment of increasing cyber-attacks ...
(Date:6/18/2015)... NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or ... mobile commerce market announces that its Wocket® smart wallet will ... the Mark", scheduled to air on WABC Radio (am770) in ... . The broadcast air- time for the ... EST. NXT-ID, Inc.,s CEO Gino Pereira will be ...
Breaking Biology News(10 mins):Body-Worn Temperature Sensors Market - Global Industry Analysis 2Crossmatch Releases Enhanced DigitalPersona Altus Advanced Authentication Functionality 2NXT-ID, Inc.'s CEO Gino Pereira Talks About the Wocket Smart Wallet on WABC Radio, New York City, June 20th 2NXT-ID, Inc.'s CEO Gino Pereira Talks About the Wocket Smart Wallet on WABC Radio, New York City, June 20th 3
... also provides new hope for controlling the devastating impact ... reports of ape die-offs first circulated widely in 2003, ... whether Ebola was even the cause. The new study, ... allays these doubts because it was conducted in a ...
... protein is essential for HIV to integrate into the human ... a chromosome, a key step that enables it to establish ... (p75). This protein forms a molecular tether between chromosomes and ... in the future, it might lead to new therapy for ...
... dogs and using the latest in imaging software and machinery, ... specialists have developed a fast and accurate means of tracking ... coronary arteries. Researchers say it took them less than ... currently used to find early warning of vessels more likely ...
Cached Biology News:Ebola-outbreak kills 5000 gorillas 2Ebola-outbreak kills 5000 gorillas 3Mayo researchers discover HIV dependence on a human protein 2Fast test for low blood flow in dogs detects early heart trouble 2Fast test for low blood flow in dogs detects early heart trouble 3Fast test for low blood flow in dogs detects early heart trouble 4
... Karn (1995) This volume provides ... methods for the study of major HIV ... transcriptase, ribonuclease H, integrase and protease. Expression ... assays; Tat and Rev assays; HIV/CD4 interactions; ...
Human Glypican 2 Biotinylated Affinity Purified PAb...
Human Contactin-2/TAG1 Affinity Purified Polyclonal Ab...
Tachykinin (H-2)...
Biology Products: