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Two ORNL-led research teams receive $10.5 million for quantum computing research

Posted at 9:36 am October 26, 2017
By Oak Ridge National Laboratory Leave a Comment

ORNL’s Pavel Lougovski, left, and Raphael Pooser will lead research teams working to advance quantum computing for scientific applications. (Photo credit: Oak Ridge National Laboratory, U.S. Department of Energy)

ORNL’s Pavel Lougovski, left, and Raphael Pooser will lead research teams working to advance quantum computing for scientific applications. (Photo credit: Oak Ridge National Laboratory, U.S. Department of Energy)

 

By Scott Jones/Oak Ridge National Laboratory

By harnessing the power of quantum mechanics, researchers hope to create quantum computers capable of simulating phenomenon at a scale and speed unthinkable on traditional architectures, an effort of great interest to agencies such as the U.S. Department of Energy tasked with tackling some of the world’s most complex science problems, a press release said.

DOE’s Office of Science has awarded two research teams, each headed by a member of Oak Ridge National Laboratory’s Quantum Information Science Group, more than $10 million over five years to both assess the feasibility of quantum architectures in addressing big science problems and to develop algorithms capable of harnessing the massive power predicted of quantum computing systems. The two projects are intended to work in concert to ensure synergy across DOE’s quantum computing research spectrum and maximize mutual benefits.

ORNL’s Raphael Pooser will oversee an effort titled, “Methods and Interfaces for Quantum Acceleration of Scientific Applications,” part of the larger Quantum Computing Testbed Pathfinder program funded by DOE’s Advanced Scientific Computing Research office. [Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, Top Stories, U.S. Department of Energy Tagged With: Advanced Scientific Computing Research, condensed matter, DOE, Georgia Tech, Heterogeneous Digital-Analog Quantum Dynamics Simulations, IBM, Institute for Nuclear Theory, IonQ, Methods and Interfaces for Quantum Acceleration of Scientific Applications, nuclear physics, Oak Ridge National Laboratory, Office of Science, ORNL, Pavel Lougovski, quantum architecture, quantum computer, quantum computers, quantum computing, Quantum Computing Institute, Quantum Computing Testbed Pathfinder, Quantum Information Science Group, quantum simulation algorithms, Raphael Pooser, Scott Jones, U.S. Department of Energy, University of the Basque Country UPV/EHU, University of Washington, Virginia Tech

ORNL researchers discover new state of water molecule

Posted at 11:38 am April 23, 2016
By Oak Ridge Today Staff Leave a Comment

berylCoverImage_horz

ORNL researchers discovered that water in beryl displays some unique and unexpected characteristics. (Photo by Jeff Scovil)

 

Neutron scattering and computational modeling have revealed unique and unexpected behavior of water molecules under extreme confinement that is unmatched by any known gas, liquid, or solid states.

In a paper published in Physical Review Letters, researchers at the U.S. Department of Energy’s Oak Ridge National Laboratory describe a new tunneling state of water molecules confined in hexagonal ultra-small channels—5 angstrom across—of the mineral beryl. An angstrom is 1/10-billionth of a meter, and individual atoms are typically about 1 angstrom in diameter.

The discovery, made possible with experiments at ORNL’s Spallation Neutron Source and the Rutherford Appleton Laboratory in the United Kingdom, demonstrates features of water under ultra confinement in rocks, soil, and cell walls, which scientists predict will be of interest across many disciplines.

“At low temperatures, this tunneling water exhibits quantum motion through the separating potential walls, which is forbidden in the classical world,” said lead author Alexander Kolesnikov of ORNL’s Chemical and Engineering Materials Division. “This means that the oxygen and hydrogen atoms of the water molecule are ‘delocalized’ and therefore simultaneously present in all six symmetrically equivalent positions in the channel at the same time. It’s one of those phenomena that only occur in quantum mechanics and has no parallel in our everyday experience.” [Read more…]

Filed Under: Front Page News, Oak Ridge National Laboratory, U.S. Department of Energy Tagged With: Alexander Kolesnikov, Andrew Seel, Andrey Podlesnyak, Chemical and Engineering Materials Division, computational modeling, David Wesolowski, DOE, Eugene Mamontov, George Ehlers, George Reiter, Lake Washington Institute of Technology, Narayani Choudhury, neutron scattering, Oak Ridge National Laboratory, Office of Basic Energy Sciences, ORNL, Physical Review Letters, quantum mechanics, quantum motion, quantum tunneling, Quantum Tunneling of Water in Beryl: a New State of the Water Molecule, Rutherford Appleton Laboratory, SNS, Spallation Neutron Source, Timothy Prisk, U.S. Department of Energy, University of Houston, University of Washington, water, water molecule

UT, ORNL part of breakthrough that reduces LED sizes

Posted at 10:36 am March 11, 2014
By University of Tennessee Leave a Comment

2-D LED Light Image

This graphical representation shows the layers of the 2-D LED and how it emits light. (Image courtesy University of Washington)

SEATTLE—University of Washington scientists have built the thinnest-known LED that can be used as a source of light energy in electronics, thanks in part to a breakthrough by researchers at Oak Ridge National Laboratory and University of Tennessee in Knoxville.

The LED is based off of two-dimensional, flexible semiconductors, making it possible to stack or use in much smaller and more diverse applications than current technology allows.

“We are able to make the thinnest-possible LEDs, only three atoms thick yet mechanically strong,” said Xiaodong Xu, a UW assistant professor in materials science and engineering and in physics. “Such thin and foldable LEDs are critical for future portable and integrated electronic devices.”

Most consumer electronics use three-dimensional LEDs, but they are up to 20 times thicker than the LEDs being developed. [Read more…]

Filed Under: College, Education, Oak Ridge National Laboratory, Science, Top Stories, U.S. Department of Energy Tagged With: Aaron Jones, Croucher Foundation, D.G. Mandrus, David Cobden, interconnects, Jason Ross, Jiaqiang Yan, Justus Liebig University, Kenji Kitamura, Kenji Watanabe, LED, light energy, light-emitting applications, Materials Science and Engineering, National Institute for Materials Science, National Science Foundation, Nirmal Ghimire, Oak Ridge National Laboratory, Office of Science, ORNL, Philip Klement, Research Grant Council of Hong Kong, Science and Engineering Research Facility, semiconductors, Takashi Taniguchi, three-dimensional LED, two-dimensional LED, U.S. Department of Energy, University Grant Committee of Hong Kong, University of Hong Kong, University of Tennessee, University of Washington, UT, UW, Wang Yao, Xiaodong Xu

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Public Notice: NNSA announces no significant impact of Y-12 Development Organization operations at Horizon Center

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