Resolvent, Brillouin-Wigner type

Elimination of the size-extensivity error in the MRBWCC theory was suggested by Hubac and Wilson [68]. The Brillouin-Wigner perturbation theory has been known notoriously as a method not furnishing size extensivity. There was therefore every reason to believe that the size-extensivity error in MR BWCCSD originated from the use of the Brillouin-Wigner type resolvent (15) instead of the Rayleigh-Schrodinger... [Pg.474]

It can be easily shown that Bq, the Brillouin-Wigner type propagator, has the same eigenfunctions as The resolvent can, therefore, be written in the sum-over-states form... [Pg.81]

By introducing the Brillouin-Wigner type propagator (resolvent)... [Pg.13]

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