 |
|
University of Oklahoma Researchers Discover Giant Rydberg Atom Molecules
June 25, 2009A group of University of Oklahoma researchers led by Dr. James P. Shaffer, Homer L. Dodge Department of Physics and Astronomy, have discovered giant Rydberg molecules with a bond as large as a red blood cell. Determining how Rydberg molecules interact is important because Rydberg atoms are a key ingredient in atom based quantum computation schemes.
Giant Rydberg molecules are formed when two Rydberg atoms interact. A Rydberg atom is an atom that has at least one electron orbiting the nucleus at a very large distance. A giant molecule can form from two Rydberg atoms when they are in close proximity to one another because fluctuations of the electron orbiting the nucleus can create an electric field at the position of the other Rydberg atom and vice versa to attract the atoms to each other.
An additional electric field can change the orbit of the electrons and lead to a change in the forces acting between the Rydberg atoms. The ability to change the orbit of the electron with an electric field is what makes it possible to control the properties of the molecule, such as binding energy and vibrational frequencies. Applying an electric field to tailor the properties of these types of molecules is a unique property.
The characteristics of the macroscopic molecules make them ideal candidates for probing quantum gases, properties of the electromagnetic field, and determining how Rydberg molecules interact. Shaffer says an understanding of these problems will bring us closer to a new generation of quantum mechanical devices that meld the best properties of isolated atomic systems with advances in microelectronic fabrication and materials science.
The research performed by Shaffer, K.R. Overstreet, A. Schwettmann, J. Tallant, and D. Booth is reported in the advanced online version (June) of Nature Physics and in the July issue of the scientific journal.
University of Oklahoma
The characteristics of the macroscopic molecules make them ideal candidates for probing quantum gases, properties of the electromagnetic field, and determining how Rydberg molecules interact. Shaffer says an understanding of these problems will bring us closer to a new generation of quantum mechanical devices that meld the best properties of isolated atomic systems with advances in microelectronic fabrication and materials science.
The research performed by Shaffer, K.R. Overstreet, A. Schwettmann, J. Tallant, and D. Booth is reported in the advanced online version (June) of Nature Physics and in the July issue of the scientific journal.
University of Oklahoma
OU professor teams with German scientists on discovery of rare molecule
A rare "Rydberg" molecule discovered by scientists from the University of Stuttgart and University of Oklahoma upheld scientific theory predicting the molecule existed.
More Rydberg Molecules Current Events and Rydberg Molecules News Articles
 |
High-resolution Spectroscopy of Rydberg Atoms and Molecules: Development and Spectroscopic Applications of a Solid-state Vacuum-ultraviolet Laser System ... and Molecular Physics by Thomas Alfred Paul (Author) The availability of laser radiation in the vacuum ultraviolet (VUV) wavelength range is important for the investigation of excited electronic states of atoms and molecules. The study of Rydberg states provides the possibility of unravelling the underlying processes of photoionization. In order to make studies of the fine and hyperfine structures in the VUV spectra of atoms and molecules feasible, high resolving powers are required. The short wavelength of VUV radiation and the difficulties that accompany its production render such studies an experimental challenge. This work summarizes the development, characterization and spectroscopic applications of a new narrow-bandwidth VUV laser system generating VUV radiation at a bandwidth of 55 MHz, five times less than that of ... |
|
Rydberg Series In Atoms & Molecules by Acheson Duncan (Author) | |
|
Rydberg States of Atoms and Molecules by R. F. Stebbings (Editor), F. B. Dunning (Editor) | |
 |
Atoms and Molecules in Strong External Fields by P. Schmelcher (Editor), W. Schweizer (Editor) |
|
Rydberg states of atoms and molecules by CUP (Publisher) | |
|
Rydberg series in atoms and molecules (Physical chemistry : a series of monographs) by A. B. F Duncan (Author) | |
|
Molecular processes in a high temperature shock layer final technical report, May 1, 1984 - July 31, 1987 (SuDoc NAS 1.26:180985) by Steven L. Guberman (Author) |
| © 2009 BrightSurf.com |