Non-equilibrium steady-states in a driven-dissipative superfluid

Understand

We experimentally study a driven-dissipative Josephson junction array, realized with a weakly interacting Bose Einstein condensate residing in a one-dimensional optical lattice.

• Engineered losses on one site act as a local dissipative process, while tunneling from the neighboring sites constitutes the driving force.
• We characterize the emerging steady-states of this atomtronic device.
• With increasing dissipation strength $\gamma$ the system crosses from a superfluid state, characterized by a coherent Josephson current into the lossy site to a resistive state, characterized by an incoherent hopping transport.