New results in searches for low-mass dark matter and dark bosons with AMO experiments

We report new results in searches for low-mass bosonic dark matter (which forms a coherently oscillating classical field) and dark bosons (which mediate anomalous new forces) with various AMO experiments. New results in searches for low-mass dark matter include searches for anomalous time-varying spin-dependent effects, including oscillating electric dipole moments (EDMs), with mercury atoms and ultracold neutrons [Abel et al., PRX 7, 041034 (2017)], and single antiprotons [Smorra, Stadnik, Budker, Ulmer et al., In preparation], as well as searches for time-varying fundamental constants and violations of the equivalence principle using atomic clock spectroscopy and both lab- and space-based torsion pendulum experiments [Hees, Minazzoli, Savalle, Stadnik, Wolf, PRD 98, 064051 (2018)]. New results in searches for dark bosons include searches for anomalous new forces in EDM experiments [Stadnik, Dzuba, Flambaum, PRL 120, 013202 (2018); Dzuba, Flambaum, Samsonov, Stadnik, PRD 98, 035048 (2018)], parity non-conservation experiments [Dzuba, Flambaum, Stadnik, PRL 119, 223201 (2017)] and antiprotonic helium spectroscopy [Ficek, Fadeev, Flambaum, Jackson Kimball, Kozlov, Stadnik, Budker, PRL 120, 183002 (2018)]. Our new limits improve on previous bounds by many orders of magnitude.