Linear response theory for a pair of coupled one-dimensional condensates of interacting atoms
Linear response theory for a pair of coupled one-dimensional condensates of interacting atoms
We use quantum sine-Gordon model to describe the low energy dynamics of a pair of coupled one-dimensional condensates of interacting atoms. We show that the nontrivial excitation spectrum of the quantum sine-Gordon model, which includes soliton and breather excitations, can be observed in experiments with time-dependent modulation of the tunneling …