Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International

Wikipedia Affiliate Button

Home > Press > Quantum experiments designed by machines: Algorithm does not work intuitive -- just as quantum physics

The algorithm Melvin found out that the most simple realization can be asymmetric and therefore counterintuitive.

Copyright: Robert Fickler, Universität Wien
The algorithm Melvin found out that the most simple realization can be asymmetric and therefore counterintuitive.

Copyright: Robert Fickler, Universität Wien

Abstract:
Quantum physicist Mario Krenn and his colleagues in the group of Anton Zeilinger from the Faculty of Physics at the University of Vienna and the Austrian Academy of Sciences have developed an algorithm which designs new useful quantum experiments. As the computer does not rely on human intuition, it finds novel unfamiliar solutions. The research has just been published in the journal Physical Review Letters.

Quantum experiments designed by machines: Algorithm does not work intuitive -- just as quantum physics

Vienna, Austria | Posted on February 23rd, 2016

The idea was developed when the physicists wanted to create new quantum states in the laboratory, but were unable to conceive of methods to do so. "After many unsuccessful attempts to come up with an experimental implementation, we came to the conclusion that our intuition about these phenomena seems to be wrong. We realized that in the end we were just trying random arrangements of quantum building blocks. And that is what a computer can do as well - but thousands of times faster", explains Mario Krenn, PhD student in Anton Zeilinger's group and first author research.

After a few hours of calculation, their algorithm - which they call Melvin - found the recipe to the question they were unable to solve, and its structure surprised them. Zeilinger says: "Suppose I want build an experiment realizing a specific quantum state I am interested in. Then humans intuitively consider setups reflecting the symmetries of the state. Yet Melvin found out that the most simple realization can be asymmetric and therefore counterintuitive. A human would probably never come up with that solution."

The physicists applied the idea to several other questions and got dozens of new and surprising answers. "The solutions are difficult to understand, but we were able to extract some new experimental tricks we have not thought of before. Some of these computer-designed experiments are being built at the moment in our laboratories", says Krenn.

Melvin not only tries random arrangements of experimental components, but also learns from previous successful attempts, which significantly speeds up the discovery rate for more complex solutions. In the future, the authors want to apply their algorithm to even more general questions in quantum physics, and hope it helps to investigate new phenomena in laboratories.

###

The research was supported by Austrian Academy of Sciences (ÖAW), the European Research Council (SIQS Grant No. 600645 EUFP7-ICT), the Austrian Science Fund (FWF) with SFB F40 (FOQUS).

####

For more information, please click here

Contacts:
Mario Krenn

43-142-772-9568

Copyright © University of Vienna

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Publication in Physical Review Letters

Related News Press

News and information

Let the europium shine brighter January 21st, 2020

Nanotubes may give the world better batteries: Rice U. scientists' method quenches lithium metal dendrites in batteries that charge faster, last longer January 16th, 2020

Quantum physics: Controlled experiment observes self-organized criticality January 16th, 2020

Quantum Physics

Study finds billions of quantum entangled electrons in 'strange metal' Physicists provide direct evidence of entanglement's role in quantum criticality January 16th, 2020

Physics

Study finds billions of quantum entangled electrons in 'strange metal' Physicists provide direct evidence of entanglement's role in quantum criticality January 16th, 2020

Quantum physics: Controlled experiment observes self-organized criticality January 16th, 2020

Govt.-Legislation/Regulation/Funding/Policy

Study finds billions of quantum entangled electrons in 'strange metal' Physicists provide direct evidence of entanglement's role in quantum criticality January 16th, 2020

Pretty with a twist: Complex porous, chiral nano-patterns arise from a simple linear building block January 16th, 2020

Toward safer disposal of printed circuit boards January 16th, 2020

Researchers gain control over internal structure of self-assembled composite materials January 16th, 2020

Discoveries

Let the europium shine brighter January 21st, 2020

Quantum physics: Controlled experiment observes self-organized criticality January 16th, 2020

Pretty with a twist: Complex porous, chiral nano-patterns arise from a simple linear building block January 16th, 2020

Toward safer disposal of printed circuit boards January 16th, 2020

Announcements

Let the europium shine brighter January 21st, 2020

Quantum physics: Controlled experiment observes self-organized criticality January 16th, 2020

Pretty with a twist: Complex porous, chiral nano-patterns arise from a simple linear building block January 16th, 2020

Toward safer disposal of printed circuit boards January 16th, 2020

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

Let the europium shine brighter January 21st, 2020

Quantum physics: Controlled experiment observes self-organized criticality January 16th, 2020

Pretty with a twist: Complex porous, chiral nano-patterns arise from a simple linear building block January 16th, 2020

Toward safer disposal of printed circuit boards January 16th, 2020

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project