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22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

Beyond Thimbles: Sign-Optimized Manifolds for Finite Density

Jul 23, 2018, 4:30 PM
Centennial (Kellogg Hotel and Conference Center)


Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Nonzero Temperature and Density Nonzero Temperature and Density


Scott Lawrence (University of Maryland, College Park)


Fermionic field theories at finite density suffer from a sign problem, making lattice calculations exponentially expensive in the volume. This sign problem can be reduced or eliminated by complexifying configuration space, and integrating over a contour deformed from the real plane. We present an algorithm for determining integration contours with reduced sign problems. We give results from this algorithm for both 1+1 and 2+1 dimensional field theories at finite density.

Primary author

Scott Lawrence (University of Maryland, College Park)

Presentation Materials