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Jeffrey Guest
Physics Division
Appointment: 08/2004 - 07/2007
Supervisor: Roy Holt and
Zheng-Tian Lu
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General Information
- Assistant Scientist
- Argonne National Laboratory
- Center for Nanoscale Materials
- 9700 S. Cass Ave.
- Argonne, IL 60439-4806
- Phone: 630-252-7073
- Fax: 630-252-4646
- E-mail: jjacob@amgen.com
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ANL Research Highlights
As the Arthur Holly Compton Fellow, I developed a laser trap for Radium-225 and Radium-226 (Phys. Rev. Lett. 98, 093001 (2007)) for an electric dipole moment (EDM) measurement and made measurements of selected atomic state lifetimes, hyperfine splittings, and isotope shifts. Additionally, we demonstrated that room-temperature blackbody radiation actually assists in the trapping of this radioactive atom. This is the heaviest and only the second element with no stable isotopes laser-cooled and trapped to date. Due to its octupole-deformed nucleus, radium-225 is expected to be orders of magnitude more sensitive to nuclear time-reversal-violating interactions than current tests and therefore is a promising place to search for physics beyond the Standard Model.
New Endeavors
In my current staff position at the Center for Nanoscale Materials, I am studying optical interactions with nanoscale structures along three basic threads, including (i) exploring the limits of electronic and spin quantum coherence in nanoscale systems at surfaces, (ii) measuring optical, mechanical and transport properties with light, and (iii) developing atomic scale control by interfacing laser spectroscopy with ultra-high-vacuum scanning tunneling microscopy.
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