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Recent News and Articles on the Keywords: quantum physics + international researchers + physics  Related to the article below (Last Update: 7/1/2008)

Profit from New Nanotech Applications
KCI Investing, VA -
In a Nature Physics journal paper currently online, the researchers describe how they?ve created a new, hybrid molecule in which its quantum state can be ...
Lindau: Marketplace for the Sciences
ScienceBlogs -
The other topics are: Practical consequences of quantum physics (Monday and Thursday), A passion for precision---the laser (Monday and Wednesday), ...
The Fight For The Best Quantum Bit (qubit)
Science Daily (press release) - Jun 25, 2008
Over the past years there has been a tremendously increasing interest in developing a quantum computer within the international world of researchers. ...
Colloidal nanoparticles - from synthesis to biological applications
Nanowerk LLC, HI -
As already stated in its name, "nanobiotechnology" comprises components from several disciplines, as biology / medicine and physics / chemistry ...
UBC reveals superconductor breakthrough
Vancouver Sun,  Canada - Jun 24, 2008
Details are being published this week in the scientific journal Nature Physics. "It's a trick that nobody has ever used and nobody has ever come up with ...

CBC.ca
RIM co-founder donates $50M to Waterloo physics centre
CBC.ca, Canada - Jun 5, 2008
Since then Perimeter has gained an international reputation for its diverse and leading-edge thinking in cosmology, quantum physics, particle physics and ...
Mike Lazaridis Donates Additional $50 Million to Perimeter Institute Market Wire (press release)
all 9 news articles »  RIMM - EPA:MLACO

Scientific American
Space Station Could Beam Secret Quantum Codes by 2014
Scientific American - Jun 9, 2008
"We can do a lot of physics experiments with a relatively small budget" of a few hundred million euros, he says. In addition to the potential practical ...
Solar Research Tops Agenda
Photonics.com, MA - Jun 24, 2008
Its plenary sessions are scheduled to include: Joseph Zyss, physics professor at the Ecole Normale Sup?rieure in Cachan near Paris and founding director of ...OTC:SLRE - NJM:7708
Ph.D. Student Position in Chemical Physics
pro-physik.de, Germany - Jun 17, 2008
Part of this success next to the quality of education and research definitely is the international orientation. Suitably qualified candidates should send ...
Leaders & Success
Investor's Business Daily (subscription) - Jun 18, 2008
"It's the foundation of an awful lot of modern physics," he said. "And quantum mechanics has spawned a lot of modern technology. ...
Source: Google News

[BOOK] Orthomodular Structures as Quantum Logics
P Pt?k, S Pulmannov? - 1991 - Kluwer Academic Pub
-

[BOOK] Physics of Shock Waves and High-Temperature Hydrodynamic Phenomena -
YB Zel'dovich - 2002 - books.google.com
... under Pan American and International Copyright Conventions. ... using classical instead
of quantum physics where this ... is well suited to researchers, engineers, stu ...

A learning pathway in high-school level quantum atomic physics -
J Petri, H Niedderer - International Journal of Science Education, 1988 - informaworld.com
... and P?TRI, J. (1996) Teaching quantum atomic physics ... The Changing Role of Physics
Departments in ... Universities, Proceedings of the International Conference on ...

[BOOK] Intersubband Transitions in Quantum Wells: Physics and Device Applications
HC Liu, F Capasso - 2000 - Academic Press
-

[BOOK] Microcavities and Photonic Bandgaps: Physics and Applications
J Rarity, C Weisbuch - 1996 - books.google.com
... to more than 50000 contributions from international scientists published ... in solid
state physics, semiconductor devices, atomic physics and quantum optics. ...

[PDF] Towards an explicit description of cognitive systems for research in physics learning -
H Niedderer, H Schecker - Procc. of an Int Workshop in Physics Learning, 1991 - idn.uni-bremen.de
... 74-98), Proceedings of an International Workshop in ... eg mechanics, optics, electricity,
quantum physics): first to ... processes within special domains of physics. ...

[BOOK] The Universe of Fluctuations: The Architecture of Spacetime And the Universe -
BG Sidharth - 2005 - books.google.com
... some seventy five papers published in international journals, and ... Quantum Superstring
Theory and Loop Quantum Gravity ... to Graduate students in physics and Junior ...

[BOOK] Point Defects in Metals I
G Leibfried, N Breuer - 1978 - Springer
-

[BOOK] Bose-Einstein Condensation -
A Griffin, DW Snoke, S Stringari - 1995 - books.google.com
... 29 Charged Bosons in Quantum Heterostructures LD ... low temperature physics, subatomic
physics and astrophysics ... David Snoke that an international workshop devoted ...

APPLIED PHYSICS: Enhanced: Moore's Law Forever? -
M Lundstrom - Science, 2003 - sciencemag.org
... The 1 June 2002 issue of Semiconductor International had an ... is defined in E. Weisstein's
World of Physics. A section on quantum tunneling is included in Todd ...

Source: Google Scholar

LSU Professor Works With International Researchers to Make Quantum Physics Discovery
John F. DiTusa, working with international researchers, will publish the findings in Science on July 26
07/26/2007 04:33 PM
John F. DiTusa, professor of physics and astronomy at LSU, and his international colleagues have discovered an unusual magnetic material that behaves very differently from the average refrigerator magnet.

He recently co-authored an article with researchers from around the world, titled, “Mesoscopic Phase Coherence in a Quantum Spin Fluid.” Their findings will be published in the July 26 edition of the prestigious Science magazine.

The results of their research have strong implications for the design of devices and materials for quantum information processing.
The group’s main goal was to demonstrate string order – also called quantum phase coherence – and to determine the factors affecting the ability to maintain this property over a finite distance. In order to investigate this, DiTusa, together with an international team of researchers, looked at a quantum spin liquid, a system where electron spins are coupled, but point in random directions. These spins can be thought of as atomic-sized bar magnets that point in random arrangements, which is in direct contrast to the behavior of household magnets, where the spins are mostly aligned. The material in which they discovered the quantum spin liquid is composed of chains of nickel-oxygen-nickel atoms.

The group found that the string order was maintained for relatively long distances, nearly 30 nanometers, or 100 times the distance between nickel atoms in the solid state, at temperatures close to absolute zero.

“I like to think of this novel state of matter as an orchestra without a conductor, each musician playing whatever comes to mind,” said DiTusa. “Though one trumpet player likes to play Jimmie Hendrix and an oboe player likes to play Bach, a miraculous occurrence takes place and, without realizing it, the entire room of musicians becomes locked into playing a Brahms symphony.”

In this case, DiTusa contends, the whole orchestra is acting as a single coherent entity, even though they are playing different parts of a nonexistent score. This coherence has a length scale of the size of the concert hall and lasts a time determined by the length of the symphony.

“In our nickel oxide magnet, although the individual nickel atoms don’t have spins that point all in the same direction, or even form a regularly repeating pattern, they all hang together to make a beautiful, coherent symphony,” he said.
Collaborators on this research include: Guangyong Xu of Johns Hopkins University and Brookhaven National Laboratory; Collin L. Broholm, Ying Chen and Michel Kenzelmann of Johns Hopkins University and the National Institute of Standards and Technology Center for Neutron Research; Yeong-Ah Soh of Dartmouth College; Gabriel Aeppli of the London Centre for Nanotechnology and University College of London; Christopher D. Frost from the ISIS Facility, Rutherford Appleton Laboratory, U.K.; Toshimitsu Ito and Kunihiko Oka of the National Institute of Advanced Industrial Science and Technology, or AIST, in Japan; and Hidenori Takagi, also from AIST and the University of Tokyo.

For more information, contact DiTusa at ditusa@phys.lsu.edu or 225-578-2606.

-30-


Ashley Berthelot
LSU Media Relations
225-578-3870
 
 
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