scholarly journals Cluster perturbation theory. IV. Convergence of cluster perturbation series for energies and molecular properties

2019 ◽  
Vol 150 (13) ◽  
pp. 134111 ◽  
Author(s):  
Filip Pawłowski ◽  
Jeppe Olsen ◽  
Poul Jørgensen
Keyword(s):  
Perturbation Theory ◽  
Perturbation Series ◽  
Molecular Properties ◽  
Cluster Perturbation Theory

scholarly journals Cluster perturbation theory. III. Perturbation series for coupled cluster singles and doubles excitation energies

2019 ◽  
Vol 150 (13) ◽  
pp. 134110 ◽  
Author(s):  
Pablo Baudin ◽  
Filip Pawłowski ◽  
Dmytro Bykov ◽  
Dmitry Liakh ◽  
Kasper Kristensen ◽  
...  
Keyword(s):  
Perturbation Theory ◽  
Perturbation Series ◽  
Coupled Cluster ◽  
Excitation Energies ◽  
Cluster Perturbation Theory

scholarly journals Master equation based steady-state cluster perturbation theory

2015 ◽  
Vol 92 (12) ◽  
Author(s):  
Martin Nuss ◽  
Gerhard Dorn ◽  
Antonius Dorda ◽  
Wolfgang von der Linden ◽  
Enrico Arrigoni
Keyword(s):  
Perturbation Theory ◽  
Steady State ◽  
Master Equation ◽  
Cluster Perturbation Theory

scholarly journals A strongly perturbed quantum system is a semiclassical system

2007 ◽  
Vol 463 (2085) ◽  
pp. 2195-2200 ◽  
Author(s):  
Marco Frasca
Keyword(s):  
Perturbation Theory ◽  
Quantum System ◽  
Perturbation Series ◽  
Duality Principle

We show that a strongly perturbed quantum system, being a semiclassical system characterized by the Wigner–Kirkwood expansion for the propagator, has the same expansion for the eigenvalues as for the Wentzel–Kramers–Brillouin series. The perturbation series is rederived by the duality principle in perturbation theory.

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