Current algebra for a generalized two-site Bose-Hubbard model

Abstract

We present a current algebra for a generalized two-site Bose-Hubbard model and use it to get the quantum dynamics of the currents. For different choices of the Hamiltonian parameters we get different currents dynamics. We generalize the Heisenberg equation of motion to write the n-th time derivative of any operator.

Comments: 5 pages, 3 figures. arXiv admin note: text overlap with arXiv:1505.06793