Dynamical matrix for arbitrary quadratic fermionic bath Hamiltonians and non-Markovian dynamics of one and two qubits in an Ising model environmentFernando Iemini, Leonardo da Silva Souza, Tiago Debarba, André T. Cesário, Thiago O. Maciel and Reinaldo O. ViannaEur. Phys. J. D, 71 5 (2017) 119DOI: https://doi.org/10.1140/epjd/e2017-70671-3