Summary: World-line approach to
Sign Problems
Shailesh Chandrasekharan
Duke University
Outline
XY model + chemical potential
world-line approach
solving the silver blaze problem!
Two component bosons + Abelian gauge fields
Grassmann variables and fermionic worldlines
Massless Thirring model + chemical potential
world-line approach
solving the silver blaze problem!
more flavors + solving sign problems
Applications to QCD Physics (static quarks)
Suggestions for QCD
Conclusions
The Origin of Sign Problems
We are usually interested in a quantum partition function
Always possible to write this as

Source: Aarts, Gert - Department of Physics, University of Wales Swansea

Collections: Physics