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DOE OSTI · 1050915

Time-dependent coupled-cluster method for atomic nuclei

Pigg, David A·Hagen, Gaute·Nam, Hai Ah·Papenbrock, Thomas F
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Abstract

We study time-dependent coupled-cluster theory in the framework of nuclear physics. Based on Kvaal's bi-variational formulation of this method [S. Kvaal, arXiv:1201.5548], we explicitly demonstrate that observables that commute with the Hamiltonian are conserved under time evolution. We explore the role of the energy and of the similarity-transformed Hamiltonian under real and imaginary time evolution and relate the latter to similarity renormalization group transformations. Proof-of-principle computations of He-4 and O-16 in small model spaces, and computations of the Lipkin model illustrate the capabilities of the method

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSHAMILTONIANSNUCLEAR PHYSICSNUCLEIRENORMALIZATIONTRANSFORMATIONS

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Pigg, David A, Hagen, Gaute, Nam, Hai Ah, Papenbrock, Thomas F. 2012-01-01. Time-dependent coupled-cluster method for atomic nuclei. https://doi.org/10.1103/physrevc.86.014308

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