Non-equilibrium thermodynamics of harmonically trapped bosons

  title={Non-equilibrium thermodynamics of harmonically trapped bosons},
  author={Miguel 'Angel Garc'ia-March and Thom{\'a}s Fogarty and Steve Campbell and Thomas Busch and Mauro Paternostro},
  journal={New Journal of Physics},
We apply the framework of non-equilibrium quantum thermodynamics to the physics of quenched small-sized bosonic quantum gases in a one-dimensional harmonic trap. We show that dynamical orthogonality can occur in these few-body systems with strong interactions after a quench and we find its occurrence analytically for an infinitely repulsive pair of atoms. We further show this phenomena is related to the fundamental excitations that dictate the dynamics from the spectral function. We establish a… 

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