BERRY'S PHASE OF ATOMS WITH DIFFERENT SIGN OF THE g-FACTOR IN A CONICAL ROTATING MAGNETIC FIELD OBSERVED BY A TIME-DOMAIN ATOM INTERFEROMETER
Berry's phase of the atom in the state with a positive or negative g factor for partial cycles of a conical rotating magnetic field was determined using a time-domain atom interferometer. The experimental results show that the solid angle for positive g-factor is ϕ(1-cosθ) and that for a negative g-factor is ϕ(1+cosθ) addition to the reversing the sign.