Two-Point Phase Correlations of a One-Dimensional Bosonic Josephson Junction
Two-Point Phase Correlations of a One-Dimensional Bosonic Josephson Junction
We realize a one-dimensional Josephson junction using quantum degenerate Bose gases in a tunable double well potential on an atom chip. Matter wave interferometry gives direct access to the relative phase field, which reflects the interplay of thermally driven fluctuations and phase locking due to tunneling. The thermal equilibrium state …