Navigation Links
Nature: Video reveals wave character of particles

This press release is available in German.

Quantum theory describes the world of atoms very precisely. Still, it defies our macroscopic conception of everyday's world due to its many anti-intuitive predictions. The wave-particle dualism probably is the best known example and means that matter may spread and interfere like waves. Now, an international team of researchers has recorded the interference process of individual molecules. The recordings were published by the journal Nature Nanotechnology online.

"Seeing how the interference pattern develops with every light spot, molecule after molecule, and how a basic principle of quantum mechanics is visualized enhances our understanding of the atomic world," explains Professor Marcel Mayor, who conducts research and teaches at Karlsruhe Institute of Technology and the University of Basel.

For the experiment performed in cooperation with colleagues from the universities of Vienna and Tel Aviv, Mayor synthesized fluorescent phtalocyanin molecules having an atomic mass of up to 1298 AMU and consisting of up to 114 atoms. Then, the molecules were accelerated, sent as a slow beam through an optical grating, and deposited on the entrance vacuum window, where they were excited to fluoresce by a laser. For a period of 90 minutes, a fluorescence microscope observed the build-up of the interference pattern. Its setup has a sufficient sensitivity to exactly locate every individual molecule on the window with a precision of about 10 nanometers.

In the future, the setup might be used to study the so-called van-der-Waals interaction between molecules in the beam and those in the grating, which is reflected rather sensitively by the interference pattern. Researchers are also interested in finding out from which size and under which conditions particles behave quantum mechanically or classically, i.e. in the so-called decoherence. These findings may be the basis for novel applications, such as quantum computers. "But the many insights given by this experiment into the quantum world and its boundaries already are of high value," Mayor agrees with many experts, among others Bum Suk Zhao and Wieland Schllkopf from the Fritz Haber Institute, Berlin, who evaluate the experiment in the accompanying comment article in the same journal.

Contact: Kosta Schinarakis
Helmholtz Association of German Research Centres

Related biology news :

1. Commentary in Nature: Can economy bear what oil prices have in store?
2. Changing the course of nature: Are fisheries directing the evolution of fish populations?
3. VeriLook Surveillance 2.0 SDK Advances Face Recognition for Large, Multi-Camera Video Surveillance Systems
4. Candid video clips from Thailand show anti-poaching efforts saving wildlife
5. Video game players advancing genetic research
6. Video shows tool use by a fish
7. JoVE grants developing countries access to experimental videos
8. VideoIQ and FLIR Announce New Thermal Analytics Processor
9. Game-changing project combines anxiety therapy and video games
10. Rigorous study confirms video game playing increases food intake in teens
11. Groundbreaking minimally invasive surgical videojournal launched by Mary Ann Liebert Inc.
Post Your Comments:
Related Image:
Nature: Video reveals wave character of particles
(Date:4/28/2016)... , April 28, 2016 Infosys ... (NYSE: INFY ), and Samsung SDS, a global ... that will provide end customers with a more secure, fast ...      (Logo: ) , ... but it also plays a fundamental part in enabling and ...
(Date:4/15/2016)... 15, 2016  A new partnership announced today ... underwriting decisions in a fraction of the time ... and high-value life insurance policies to consumers without ... With Force Diagnostics, rapid testing (A1C, Cotinine and ... (blood pressure, weight, pulse, BMI, and activity data) ...
(Date:3/31/2016)... March 31, 2016  Genomics firm Nabsys has completed ... Barrett Bready , M.D., who returned to the ... original technical leadership team, including Chief Technology Officer, ... Development, Steve Nurnberg and Vice President of Software and ... company. Dr. Bready served as CEO of ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... (PRWEB) , ... June 27, 2016 , ... ... operations for Amgen, will join the faculty of the University of North ... adjunct professor of strategy and entrepreneurship at UNC Kenan-Flagler, with a focus on ...
(Date:6/24/2016)... , June 24, 2016 Epic ... sensitively detects cancers susceptible to PARP inhibitors by ... tumor cells (CTCs). The new test has already ... therapeutics in multiple cancer types. Over ... DNA damage response pathways, including PARP, ATM, ATR, ...
(Date:6/23/2016)... ... June 23, 2016 , ... UAS LifeSciences, one ... of their brand, UP4™ Probiotics, into Target stores nationwide. The company, which has ... add Target to its list of well-respected retailers. This list includes such fine ...
(Date:6/23/2016)... -- Houston Methodist Willowbrook Hospital has signed a ... serve as their official health care provider. As ... provide sponsorship support, athletic training services, and most ... athletes and families. "We are excited ... to bring Houston Methodist quality services and programs ...
Breaking Biology Technology: