1,455 research outputs found
Similarity Renormalization Group for Few-Body Systems
Internucleon interactions evolved via flow equations yield soft potentials
that lead to rapid variational convergence in few-body systems.Comment: 3 pages, 6 figures. To appear in the proceedings of the 20th European
Conference on Few-Body Problems in Physics (EFB20), Pisa, September 10-14,
200
Shelf and cycle life evaluation of silver-zinc cells
Silver-zinc cells having a separator system of cross-linked high-density polyethylene with a methacrylic acid graft withstand corrosion when subjected to thermal sterilization treatments
Battery storage optimization and design studies
Storage effects on performance of silver zinc and silver cadmium batterie
Towards a Model-Independent Low Momentum Nucleon-Nucleon Interaction
We provide evidence for a high precision model-independent low momentum
nucleon-nucleon interaction. Performing a momentum-space renormalization group
decimation, we find that the effective interactions constructed from various
high precision nucleon-nucleon interaction models, such as the Paris, Bonn,
Nijmegen, Argonne, CD Bonn and Idaho potentials, are identical. This
model-independent low momentum interaction, called V_{low k}, reproduces the
same phase shifts and deuteron pole as the input potential models, without
ambiguous assumptions on the high momentum components, which are not
constrained by low energy data and lead to model-dependent results in many-body
applications. V_{low k} is energy-independent and does not necessitate the
calculation of the Brueckner G matrix.Comment: 12 pages, 5 figures, minor changes and additions, to appear in Phys.
Lett.
Storage battery comprising negative plates of a wedge shaped configuration
An improved silver-zinc battery particularly suited for use in an environment where battery operation is subjected to multiple charge/discharge cycling over extended periods is described. The battery seperator system, containing a highly absorbent material continguous with the surfaces of the plates and multiple semi-permeable membranes interposed between the plates, is also characterized
Density Matrix Expansion for Low-Momentum Interactions
A first step toward a universal nuclear energy density functional based on
low-momentum interactions is taken using the density matrix expansion (DME) of
Negele and Vautherin. The DME is adapted for non-local momentum-space
potentials and generalized to include local three-body interactions. Different
prescriptions for the three-body DME are compared. Exploratory results are
given at the Hartree-Fock level, along with a roadmap for systematic
improvements within an effective action framework for Kohn-Sham density
functional theory.Comment: 50 pages, 10 figure
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