Mean-field dynamics to negative absolute temperatures in the Bose-Hubbard modelRemoveÁkos RappPhys. Rev. A 87, 043611 (2013)
Modified two-potential approach to tunneling problemsRemoveS. A. Gurvitz, P. B. Semmes, W. Nazarewicz, and T. VertsePhys. Rev. A 69, 042705 (2004)