[Triumf-seminars] TRIUMF Theory Seminar today at 13:00

[TRIUMF Seminars]

Date/Time: Mon 2013-02-25 at 13:00

Location:  Theory Room         

Speaker:   Heiko Hergert (Ohio State)

Title:     In-Medium Similarity Renormalization Group for Finite Nuclei

Abstract: In nuclear physics, the Similarity Renormalization Group (SRG) has been used primarily to 

soften realistic free-space nucleon-nucleon (NN) and three-nucleon

(3N) interactions in small steps by solving a flow equation. These evolved

effective interactions greatly improve the convergence of nuclear many-body

calculations. However, the SRG flow equation formalism has much wider

applications.


In the In-Medium SRG, the Hamiltonian is evolved directly in the A-body system.

By a suitable choice of generator in the flow equation, the ground state is decoupled

step-by-step from particle-hole excitations, and the IM-SRG becomes a new

ab initio technique for solving the nuclear many-body problem. The modest

computational effort makes calculations for medium-mass and heavy nuclei feasible.



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