Searching for fundamental symmetry violations with polyatomic molecules
Hutzler, Nicholas R.
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https://hdl.handle.net/2142/107523
Description
Title
Searching for fundamental symmetry violations with polyatomic molecules
Author(s)
Hutzler, Nicholas R.
Issue Date
2020-06-23
Keyword(s)
Mini-symposium: Precision Spectroscopy for Fundamental Physics
Abstract
The fact that the universe is made entirely out of matter, and contains no free anti-matter, has no physical explanation. The unknown process that created matter in the universe must violate a number of fundamental symmetries, including those that forbid the existence of certain electromagnetic moments of fundamental particles -- moments which are amplified by the large internal fields in polar molecules. We discuss spectroscopic and theoretical investigations into polyatomic molecules that uniquely combine high polarizability through symmetry-lowering mechanical motions with laser-coolable electronic structures. In particular we discuss YbOH, whose isotopologues have sensitivity to symmetry violations of the electron and the Yb nucleus, along with some other molecules that offer unique opportunities for precision measurement.
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