Fig. 8: Rabi-like oscillation between the two eigenstates.
From: Wilson loop and Wilczek-Zee phase from a non-Abelian gauge field
The population imbalance (Ng − Ne)/(Ng + Ne) was measured after the cyclic coupling for θ2 = π/4 was abruptly turned on with the BEC in state \(\left|2\right\rangle\). The observed oscillation frequency of 2.0 kHz determines the energy gap of our system.
