74 citations · 256 across the 8 of their papers we have counts for
8 papers
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…
Mass measurements of 99-101In challenge ab initio nuclear theory of the nuclide 100Sn
M. Mougeot, D. Atanasov, J. Karthein +23
100Sn is of singular interest for nuclear structure. Its closed-shell proton and neutron configuration exhibit exceptional binding and 100Sn is the heaviest nucleus comprising prot…
Nuclear charge radii of Na isotopes: A tale of two theories
B. Ohayon, R. F. Garcia Ruiz, Z. H. Sun +3
The accuracy of atomic theory calculations limits the extraction of nuclear charge radii from isotope shift measurements of odd-proton nuclei. For Na isotopes, though precise spect…
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…
Low-temperature lattice anomaly in LaFeAsO0.93F0.07 probed by x-ray absorption spectroscopy: Evidence for strong electron-lattice interaction
C. J. Zhang, H. Oyanagi, Z. H. Sun +2
The local lattice structure in newly discovered LaFeAsO1-xFx superconductors is studied by extended x-ray absorption fine structure measurements. An anomalous upturn of the mean-sq…