# Nuclear Physics Seminar

##
Non-Locality in the Similarity Renormalization Group

### Kyle Wendt (UT Knoxville/ORNL)

#### Thursday, September 26th, 2013, 11:10 am

The Similarity Renormalization Group (SRG) is a continuous series of
unitary transformations that can be implemented as a flow equation.
Nuclear forces softened by SRG are inherently non-local. Further SRG
will induce few-body forces even when they are not present in the
initial Hamiltonian. By exploiting simple integral projections, the
non-local nuclear two-body forces can be separated into a local
interaction and non-local residual. This residual is demonstrated to
be perturbative at low energy, raising the possibility of using
non-local interactions with modern quantum Monte Carlo methods. The
results of this separation and the status on development of tools,
such as hyper-spherical plane wave SRG evolution for the three nucleon
force, for doing similar projections to the three and four nucleon
force will be presented.

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