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Explore the fascinating intersection of atomic physics and fundamental symmetries through this 52-minute conference talk examining francium's unique properties and applications in precision measurements. Delve into how francium, the heaviest alkali atom, serves as an exceptional probe for testing fundamental physics principles and searching for physics beyond the Standard Model. Learn about the experimental challenges and techniques involved in trapping and manipulating francium atoms, including laser cooling and trapping methods specific to this rare radioactive element. Discover how francium's large nuclear charge and simple electronic structure make it an ideal candidate for measuring atomic parity violation and testing electroweak theory predictions. Examine the role of francium experiments in constraining new physics scenarios, including searches for dark matter interactions and tests of fundamental symmetries. Understand the theoretical framework connecting atomic structure calculations to fundamental physics measurements, and gain insights into how precision atomic physics experiments contribute to our understanding of the universe's fundamental laws.
