2D Overdamped Langevin Dynamics

Interactive simulation in different 2d potential of the Overdamped Langevin Dynamics with a Stratonovich perturbation \[dX_t = - \nabla V(X_t) dt + \delta J \nabla V(X_t) \circ \sqrt{2} d\beta_t + \sqrt{2 T} dW_t\] The parameter "Perturbation" refers to the scaling parameter \(\delta\) in front of
the Stratonovich perturbation. In particular, setting it to \(0\) leads to classical overdamped Langevin dynamics.