Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > MIPT-based researcher predicts new state of matter

Abstract:
A researcher with the Department of Electrodynamics of Complex Systems and Nanophotonics, Alexander Rozhkov, has presented theoretical calculations which indicate the possible existence of fermionic matter in apreviously unknown state - in the form ofaone-dimensional liquid, which cannot be described within the framework of existing models. Details are contained in Rozhkov's article in the journal Physical Review Letters, and are also available as a preprint at www.arxiv.org.

MIPT-based researcher predicts new state of matter

Moscow, Russia | Posted on June 17th, 2014

Rozhkov explained that the one-dimensional liquid state of matter is not necessarily one that can be observed with the naked eye on a macroscopic scale. The term "liquid" should be understood broadly, he said; it applies to models describing multi-particle systems with inter-particle interaction. Such models can be described as quite ordinary objects such as electrons in conductors and more sophisticated objects,such as nanotubes, nanowires or graphene sheets.

"Currently there are two general models of fermionic matter, namely fermionic liquid (for three- and two-dimensional spaces) and Tomonaga-Luttinger liquid (for one-dimensional space)," Rozhkov said. "I showed that it is possible to produce yet another state of one-dimensional matter adjusting certain interactions. This state is similar to both of these models, but cannot be reduced to either. I suggested calling it aquasi-fermionic liquid."

As follows from the proposed name, the newly found matter consists of fermions, which are particles with half-integer spin. (Spin is the quantum characteristic of a particle, while half-integer is an integer plus one-half.) According to the laws of quantum mechanics, the behavior of substances consisting of fermions differs from that of matter consisting of bosons, which are particles with integer spin.

The difference between Bose and fermionic liquids can be illustrated with the example of liquid helium: the atom of a helium-4 isotope has a Bose nucleus, and forms of Bose liquid that undergoes Bose condensation at temperatures below 2.17 Kelvin. A Bose-condensed liquid exhibits superfluidity, for example, it can flow through any crack without meeting any resistance. Helium-3 has a fermion nucleus, and therefore forms afermionic liquid. To turn helium-3 into a superfluid one needs to cool it to 0.0025 Kelvin.

Rozhkov also noted that at low temperatures and in high magnetic fields, fermions begin to behave as if they had no spin, which simplifies their modeling, allowing a researcher to maintain sufficient accuracy.

Preliminary estimates show that the new one-dimensional liquid statecan be obtained using atoms cooled to very low temperatures in magnetic traps. However, it is still too early to consider the practical application of such a system, according to Rozhkov.

"In almost any contemporary paper, both theoretical and experimental, researchers describe the practical application of their discovery, but at this stage I would not hopetoo much for any practical application," Rozhkov said. "I found an exotic mutant different from anything currently known. And whether this can be applied in practice remains to be seen. At this moment I don't think so," said Rozhkov.

Rozhkov added that the group of researchers he works with is also looking into other low-dimensional and multi-particle systems. For example, new results were recently obtained on the possible anti-ferromagnetism in two-layer graphene-AA, and a new description for quantum dots of superconducting material was drafted.

MIPT's press service would like to thank Dr. Alexander Rozhkov for his generous help in writing this article.

####

For more information, please click here

Contacts:
Alexandra O. Borissova

7-495-408-6445

Copyright © Moscow Institute of Physics and Technology

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

Download article:

Related News Press

News and information

Ultra-precise chip-scale sensor detects unprecedentedly small changes at the nanoscale January 20th, 2017

National Space Society Congratulates SpaceX on the Falcon 9's Return to Flight January 19th, 2017

Eric Berger Wins the National Space Society's 2017 Space Pioneer Award for Mass Media January 19th, 2017

Nanometrics to Announce Fourth Quarter and Full Year Financial Results on February 7, 2017 January 19th, 2017

Physics

Seeing the quantum future... literally: What if big data could help you see the future and prevent your mobile phone from breaking before it happened? January 16th, 2017

NIST physicists 'squeeze' light to cool microscopic drum below quantum limit January 12th, 2017

First experimental proof of a 70 year old physics theory: First observation of magnetic phase transition in 2-D materials, as predicted by the Nobel winner Onsager in 1943 January 6th, 2017

Diamonds are technologists' best friends: Researchers from the Lomonosov Moscow State University have grown needle- and thread-like diamonds and studied their useful properties December 30th, 2016

Graphene/ Graphite

Researchers design one of the strongest, lightest materials known: Porous, 3-D forms of graphene developed at MIT can be 10 times as strong as steel but much lighter January 7th, 2017

Nano-chimneys can cool circuits: Rice University scientists calculate tweaks to graphene would form phonon-friendly cones January 4th, 2017

Discoveries

Ultra-precise chip-scale sensor detects unprecedentedly small changes at the nanoscale January 20th, 2017

Chemists Cook up New Nanomaterial and Imaging Method: Nanomaterials can store all kinds of things, including energy, drugs and other cargo January 19th, 2017

'5-D protein fingerprinting' could give insights into Alzheimer's, Parkinson's January 19th, 2017

Strength of hair inspires new materials for body armor January 18th, 2017

Announcements

Ultra-precise chip-scale sensor detects unprecedentedly small changes at the nanoscale January 20th, 2017

Chemists Cook up New Nanomaterial and Imaging Method: Nanomaterials can store all kinds of things, including energy, drugs and other cargo January 19th, 2017

National Space Society Congratulates SpaceX on the Falcon 9's Return to Flight January 19th, 2017

Eric Berger Wins the National Space Society's 2017 Space Pioneer Award for Mass Media January 19th, 2017

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

Ultra-precise chip-scale sensor detects unprecedentedly small changes at the nanoscale January 20th, 2017

Chemists Cook up New Nanomaterial and Imaging Method: Nanomaterials can store all kinds of things, including energy, drugs and other cargo January 19th, 2017

'5-D protein fingerprinting' could give insights into Alzheimer's, Parkinson's January 19th, 2017

Strength of hair inspires new materials for body armor January 18th, 2017

Quantum Dots/Rods

Carbon dots dash toward 'green' recycling role: Rice scientists, colleagues use doped graphene quantum dots to reduce carbon dioxide to fuel December 18th, 2016

Two electrons go on a quantum walk and end up in a qudit: Russian scientists find a way to reliably connect quantum elements December 13th, 2016

Trickling electrons: Close to absolute zero, the particles exhibit their quantum nature November 10th, 2016

Notre Dame researchers find transition point in semiconductor nanomaterials September 6th, 2016

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




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project