Jan 16, 2009 | 2
Physicist Steven Chu may be on the verge of becoming the nation's top energy official, but physics clearly is never far from his mind. To wit: on the day of his Senate confirmation hearing this week to become President-elect Barack Obama's energy secretary, a paper Chu co-wrote was posted by one of his co-authors on the Web site arxiv.org.
Chu, 60, is director of Lawrence Berkeley National Laboratory and a 1997 Nobel laureate in physics, but he's also an active researcher who publishes regularly.
The new paper, "Noise-Immune Conjugate Large-Area Atom Interferometers," describes a high-sensitivity atom interferometer setup, a device that can be used to measure fundamental physical constants and even provide tests of Albert Einstein's general relativity, the reigning theory of gravity.
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