G
Gustav R. Jansen
Researcher at Oak Ridge National Laboratory
Publications - 60
Citations - 4054
Gustav R. Jansen is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Neutron & Nucleon. The author has an hindex of 26, co-authored 56 publications receiving 3143 citations. Previous affiliations of Gustav R. Jansen include University of Tennessee & National Center for Computational Sciences.
Papers
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Journal ArticleDOI
Cloud Quantum Computing of an Atomic Nucleus
Eugene F. Dumitrescu,Alexander McCaskey,Gaute Hagen,Gaute Hagen,Gustav R. Jansen,Gustav R. Jansen,T. D. Morris,T. D. Morris,Thomas Papenbrock,Thomas Papenbrock,Raphael C. Pooser,Raphael C. Pooser,D. J. Dean,Pavel Lougovski +13 more
TL;DR: This work designs a low-depth version of the unitary coupled-cluster ansatz, uses the variational quantum eigensolver algorithm, and compute the binding energy to within a few percent of the deuteron binding energy.
Journal ArticleDOI
Accurate nuclear radii and binding energies from a chiral interaction
Andreas Ekström,Andreas Ekström,Gustav R. Jansen,Gustav R. Jansen,K. A. Wendt,K. A. Wendt,Gaute Hagen,Gaute Hagen,Thomas Papenbrock,Thomas Papenbrock,B. D. Carlsson,Christian Forssén,Christian Forssén,Christian Forssén,Morten Hjorth-Jensen,Morten Hjorth-Jensen,Petr Navrátil,Witold Nazarewicz,Witold Nazarewicz,Witold Nazarewicz +19 more
TL;DR: In this paper, two-nucleon and three-Nucleon forces from chiral effective field theory are optimized simultaneously to low-energy nucleon-Nuclear scattering data, as well as binding energies and radii of few nucleon systems and selected isotopes of carbon and oxygen.
Journal ArticleDOI
Optimized Chiral Nucleon-Nucleon Interaction at Next-to-Next-to-Leading Order
Andreas Ekström,Andreas Ekström,G. Baardsen,Christian Forssén,Gaute Hagen,Gaute Hagen,Morten Hjorth-Jensen,Morten Hjorth-Jensen,Gustav R. Jansen,Gustav R. Jansen,Ruprecht Machleidt,Witold Nazarewicz,Witold Nazarewicz,Witold Nazarewicz,Thomas Papenbrock,Thomas Papenbrock,Jason Sarich,Stefan M. Wild +17 more
TL;DR: It is demonstrated that many aspects of nuclear structure can be understood in terms of this nucleon-n nucleon interaction, without explicitly invoking three-nucleon forces.
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Neutron and weak-charge distributions of the 48Ca nucleus
Gaute Hagen,Gaute Hagen,Andreas Ekström,Andreas Ekström,Christian Forssén,Christian Forssén,Christian Forssén,Gustav R. Jansen,Gustav R. Jansen,Witold Nazarewicz,Witold Nazarewicz,Witold Nazarewicz,Thomas Papenbrock,Thomas Papenbrock,K. A. Wendt,K. A. Wendt,Sonia Bacca,Sonia Bacca,Nir Barnea,B. D. Carlsson,C. Drischler,Kai Hebeler,Morten Hjorth-Jensen,Morten Hjorth-Jensen,Mirko Miorelli,Mirko Miorelli,Giuseppina Orlandini,Giuseppina Orlandini,Achim Schwenk,J. Simonis +29 more
TL;DR: In this article, an ab initio calculation of the neutron distribution of the Neutron-rich nucleus Ca-48 is presented, and it is shown that the difference between the radii of the neutrons and proton distributions is significantly smaller than previously thought.
Journal ArticleDOI
Unexpectedly large charge radii of neutron-rich calcium isotopes
R. F. Garcia Ruiz,Mark Bissell,Mark Bissell,Klaus Blaum,Andreas Ekström,Andreas Ekström,N. Frömmgen,Gaute Hagen,M. Hammen,Kai Hebeler,Jason D. Holt,Gustav R. Jansen,Gustav R. Jansen,Magda Kowalska,K. Kreim,Witold Nazarewicz,Witold Nazarewicz,Witold Nazarewicz,Rainer Neugart,Gerda Neyens,Wilfried Nörtershäuser,Wilfried Nörtershäuser,Thomas Papenbrock,Thomas Papenbrock,J. Papuga,Achim Schwenk,Achim Schwenk,J. Simonis,Klaus Wendt,Klaus Wendt,Deyan T. Yordanov,Deyan T. Yordanov +31 more
TL;DR: In this article, the authors present the first measurements of the charge radii of 49,51,52Ca, obtained from laser spectroscopy experiments at ISOLDE, CERN.