74 citations · 256 across the 8 of their papers we have counts for
5 papers · 1 filter
Entanglement entropy of nuclear systems
Chenyi Gu, Z. H. Sun, G. Hagen +1
We study entanglement entropies between the single-particle states of the hole space and its complement in nuclear systems. Analytical results based on the coupled-cluster method s…
How to renormalize coupled cluster theory
Z. H. Sun, C. A. Bell, G. Hagen +1
Coupled cluster theory is an attractive tool to solve the quantum many-body problem because its singles and doubles (CCSD) approximation is computationally affordable and yields ab…
Angular-momentum projection in coupled-cluster theory: structure of Mg
G. Hagen, S. J. Novario, Z. H. Sun +5
Single-reference coupled-cluster theory is an accurate and affordable computational method for the nuclear many-body problem. For open-shell nuclei, the reference state typically b…
Effective shell-model interaction for nuclei southeast of Sn
Z. H. Sun, G. Hagen, G. R. Jansen +1
We construct an effective shell-model interaction for the valence space spanned by single-particle neutron and single-hole proton states in Sn. Starting from chiral nucleon…
Resonances of unbound quantum many-body systems of nuclei
B. S. Hu, Q. Wu, Z. H. Sun +1
Resonance is a general phenomenon which can happen in classic or quantum systems. An unbound many-body quantum system can undergo a self-resonant process. It has long been a challe…