School of Chemistry and Biochemistry to Host Charles L. Liotta Symposium

This year marks Regents Professor Emeritus Charles Liotta’s 50th at Georgia Tech, and the celebration is on.

Grad Students and the Quest for the Origins of Life

Want to learn how life began? You can do that. Chemistry and Biochemistry graduate student Eric Parker tells how.

Seminars & Events

Meeting - Thursday, October 23, 2014 - 11:00am - MoSE 3201A
Special Seminar - Thursday, October 23, 2014 - 1:00pm - MoSE 1224
Special Seminar - Thursday, October 23, 2014 - 2:00pm - MoSE 1224
Prof. Gregory Hartland - University of Notre Dame
Colloquium - Thursday, October 23, 2014 - 4:00pm - MoSE G011

Featured Research

Article Title
Research Authors
Kenneth R. Brown.
Citation
Science (2014), Vol. 343, 255-256
Miscellaneous Details
Georgia Institute of Technology

The standard view of the electron is that it is a very small perfectly spherical charge. What if the electron was slightly asymmetric? It would then have a small electric dipole moment that could only be detected by measuring the electron orientation in a strong electric field. The interaction of a spherical electron with quantum mechanical fluctuations of virtual particles in empty space can also lead to a small electric dipole moment.  For the known fundamental particles, the resulting dipole moment is extremely small.  Potential undiscovered particles can raise the value and many theoretical physics models predict the value to be close or above current measured limits. The current best measurements use the strong internal electric field of molecules to search for the electron electric dipole moment. In this Science perspective, Prof. Brown discusses two recent experiments using HfF+ and ThO to measure this elusive quantity. The HfF+ by scientists at JILA shows for the first time that these experiments are possible with molecular ions. The ThO experiment by the ACME collaboration succeeds in using molecular spectroscopy to limit the properties of undiscovered particles.

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