Now showing items 1-4 of 4
Variational dynamics of the sub-Ohmic spin-boson model on the basis of multiple Davydov D1 states
Dynamics of the sub-Ohmic spin-boson model is investigated by employing a multitude of the Davydov D1 trial states, also known as the multi-D1Ansatz. Accuracy in dynamics simulations is improved significantly over the ...
Transient dynamics of a one-dimensional Holstein polaron under the influence of an external electric field
Following the Dirac-Frenkel time-dependent variational principle, transient dynamics of a one-dimensional Holstein polaron with diagonal and off-diagonal exciton-phonon coupling in an external electric field is studied by ...
Symmetry and the critical phase of the two-bath spin-boson model : ground-state properties
A generalized trial wave function termed as the "multi-D1 ansatz'' has been developed to study the ground state of the spin-boson model with simultaneous diagonal and off-diagonal coupling in the sub-Ohmic regime. Ground ...
Ground-state properties of sub-Ohmic spin-boson model with simultaneous diagonal and off-diagonal coupling
By employing a variational approach, the density matrix renormalization group (DMRG), the exact diagonalization, and symmetry and mean-field analyses, the ground-state properties of the two-bath spin-boson model with ...