Multireference linearized coupled cluster theory for strongly correlated systems using matrix product states
Multireference linearized coupled cluster theory for strongly correlated systems using matrix product states
We propose a multireference linearized coupled cluster theory using matrix product states (MPS-LCC) which provides remarkably accurate ground-state energies, at a computational cost that has the same scaling as multireference configuration interaction singles and doubles (MRCISD), for a wide variety of electronic Hamiltonians. These range from first-row dimers at equilibrium …