Magnetically trapped antihydrogen atoms at low temperatures were
used to test the charge neutrality of this antiatomic system, by precisely
placing a limit to its electrical charge. A new method for measuring the
gravitational interaction of antimatter was also developed, and prospects
for making a precise measurement of this interaction are discussed.
Finally, progress towards a precise, direct test of CPT symmetry by laser
spectroscopy of antihydrogen is presented.
© 2016 OSA