Towards New Atomic Parity Violation Measurements With Ultracold Tin Atoms

Tin (Sn) atoms offer unique opportunities for precision tests of fundamental physics and searches for physics beyond the Standard Model. This is due to two features: (1) the rich spectrum of clock transitions between terms in the s²p² ground-state configuration, and (2) the fact that Sn possesses the longest chain of stable isotopes in nature. In this work, we propose a new experimental scheme for performing atomic parity violation (APV) measurements of the weak charges of Sn isotopes, using ultracold Sn atoms trapped in an optical lattice. Such APV studies provide a high-precision test of the Standard Model at low energy scales and may offer unprecedented sensitivity to hypothetical extensions such as Z' bosons. Here, we present the conceptual design of the experiment, discuss the expected sensitivity based on realistic experimental parameters, and report recent experimental progress toward magneto-optical trapping of Sn atoms.