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1.
Quantum computing of the $^6$Li nucleus via ordered unitary coupled cluster / Kiss, Oriel (CERN ; Geneva U.) ; Grossi, Michele (CERN) ; Lougovski, Pavel (Unlisted, US, WA) ; Sanchez, Federico (Geneva U.) ; Vallecorsa, Sofia (CERN) ; Papenbrock, Thomas (Oak Ridge ; U. Tennessee, Knoxville)
The variational quantum eigensolver (VQE) is an algorithm to compute ground and excited state energy of quantum many-body systems. A key component of the algorithm and an active research area is the construction of a parametrized trial wavefunction -- a so called variational ansatz. [...]
arXiv:2205.00864.- 2022-09-29 - 9 p. - Published in : Phys. Rev. C 106 (2022) 034325 Fulltext: Publication - PDF; 2205.00864 - PDF;
2.
Nuclear Charge Radii of the Nickel Isotopes $^{58-68,70}$Ni / Malbrunot-Ettenauer, S. (CERN) ; Kaufmann, S. (Darmstadt, Tech. U.) ; Bacca, S. (Mainz U., Inst. Kernchem. ; Helmholtz Inst., Mainz) ; Barbieri, C. (Surrey U. ; Milan U. ; INFN, Milan) ; Billowes, J. (Manchester U.) ; Bissell, M.L. (Manchester U.) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Cheal, B. (Liverpool U.) ; Duguet, T. (IRFU, Saclay) ; Ruiz, R.F. Garcia (CERN ; Manchester U.) et al.
Collinear laser spectroscopy is performed on the nickel isotopes $^{58-68,70}$Ni, using a time-resolved photon counting system. From the measured isotope shifts, nuclear charge radii $R_c$ are extracted and compared to theoretical results. [...]
arXiv:2112.03382.- 2022-01-14 - 8 p. - Published in : Phys. Rev. Lett. 128 (2022) 022502 Fulltext: PhysRevLett.128.022502 - PDF; 2112.03382 - PDF;
3.
Mass measurements of $^{99-101}$In challenge ab initio nuclear theory of the nuclide $^{100}$Sn / Mougeot, M. (Heidelberg, Max Planck Inst. ; CERN) ; Atanasov, D. (CERN) ; Karthein, J. (Heidelberg, Max Planck Inst. ; CERN) ; Wolf, R.N. (Sydney U.) ; Ascher, P. (CENBG, Gradignan) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Chrysalidis, K. (CERN) ; Hagen, G. (Tennessee U. ; Oak Ridge) ; Holt, J.D. (TRIUMF ; McGill U.) ; Huang, W.J. (Heidelberg, Max Planck Inst.) et al.
$^{100}$Sn is of singular interest for nuclear structure. Its closed-shell proton and neutron configuration exhibit exceptional binding and $^{100}$Sn is the heaviest nucleus comprising protons and neutrons in equal number, a feature that enhances the contribution of the short-range, proton-neutron pairing interaction and strongly influences its decay via the weak interaction. [...]
arXiv:2109.10673.- 2021 - 12 p. - Published in : Nature Phys. 17 (2021) 1099 Fulltext: 2109.10673 - PDF; s41567-021-01326-9 - PDF;
4.
Charge radii of exotic potassium isotopes challenge nuclear theory and the magic character of $N = 32$ / Koszorús, Á. (Leuven U.) ; Yang, X.F. (Peking U., SKLNPT) ; Jiang, W.G. (U. Tennessee, Knoxville ; Oak Ridge ; Chalmers U. Tech.) ; Novario, S.J. (U. Tennessee, Knoxville ; Oak Ridge) ; Bai, S.W. (Peking U., SKLNPT) ; Billowes, J. (Manchester U.) ; Binnersley, C.L. (Manchester U.) ; Bissell, M.L. (Manchester U.) ; Cocolios, T.E. (Leuven U.) ; Cooper, B.S. (Manchester U.) et al.
Nuclear charge radii are sensitive probes of different aspects of the nucleon-nucleon interaction and the bulk properties of nuclear matter; thus, they provide a stringent test and challenge for nuclear theory. The calcium region has been of particular interest, as experimental evidence has suggested a new magic number at $N = 32$ [1-3], while the unexpectedly large increases in the charge radii [4,5] open new questions about the evolution of nuclear size in neutron-rich systems. [...]
arXiv:2012.01864.- 2021-01-28 - 5 p. - Published in : Nature Phys.
Fulltext: PDF; Fulltext from publisher: PDF;
5.
Unexpectedly large charge radii of neutron-rich calcium isotopes / Garcia Ruiz, R. F. (Leuven U.) ; Bissell, M.L. (Leuven U. ; Manchester U.) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Ekström, A. (Oak Ridge ; Tennessee U.) ; Frömmgen, N. (Mainz U., Inst. Kernchem.) ; Hagen, G. (Oak Ridge) ; Hammen, M. (Mainz U., Inst. Kernchem.) ; Hebeler, K. (Darmstadt, Tech. Hochsch. ; Darmstadt, EMMI) ; Holt, J.D. (TRIUMF) ; Jansen, G.R. (Oak Ridge ; Tennessee U.) et al.
Despite being a complex many-body system, the atomic nucleus exhibits simple structures for certain ‘magic’ numbers of protons and neutrons. The calcium chain in particular is both unique and puzzling: evidence of doubly magic features are known in 40,48Ca, and recently suggested in two radioactive isotopes, 52,54Ca. [...]
arXiv:1602.07906.- 2016 - 6 p. - Published in : Nature Phys. 12 (2016) 594-598 Fulltext: PDF; External link: Fulltext
6.
Building nuclei from the ground up / Hagen, G ; Dean, D J ; Jensen, M H ; Papenbrock, T
2006 - Published in : PoS: NIC-IX (2006) , pp. 275 Published version from PoS: PDF;
In : 9th International Symposium on Nuclear Astrophysic: Nuclei in the Cosmos, CERN, Geneva, Switzerland, 25 - 30 Jun 2006, pp.275
7.
Nuclear Structure Calculations with Coupled Cluster Methods from Quantum Chemistry / Dean, D.J. (Oak Ridge ; Oslo U.) ; Gour, J.R. (Michigan State U.) ; Hagen, G. (Oslo U.) ; Hjorth-Jensen, M. (Oslo U. ; CERN ; Michigan State U.) ; Kowalski, K. (Michigan State U.) ; Papenbrock, T. (Oak Ridge ; Tennessee U.) ; Piecuch, P. (Michigan State U.) ; Wloch, M. (Michigan State U.)
We present several coupled-cluster calculations of ground and excited states of 4He and 16O employing methods from quantum chemistry. A comparison of coupled cluster results with the results of exact diagonalization of the hamiltonian in the same model space and other truncated shell-model calculations shows that the quantum chemistry inspired coupled cluster approximations provide an excellent description of ground and excited states of nuclei, with much less computational effort than traditional large-scale shell-model approaches. [...]
nucl-th/0409062.- 2005 - 10 p. - Published in : Nucl. Phys. A 752 (2005) 299-308 Access to fulltext document: PDF; Fulltext: PDF; External link: nucl-th/0409062 PDF
In : 22nd International Nuclear Physics Conference, Göteborg, Sweden, 27 Jun - 2 Jul 2004, pp.299-308

似た著者名:
5 Papenbrock, T.
8 Papenbrock, Thomas
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