Nuclear Theory/RIKEN Seminar

"Going with the flow: solving sign problems in complex space"

Presented by Paulo Bedaque, University of Maryland

Friday, January 13, 2017, 2:00 pm — Small Seminar Room, Bldg. 510

We discuss a new approach to solve the sign problem arising in the Monte Carlo evaluation of path integrals. It is based on deforming the contour of integration into complex space. We will argue that for conceptual and numeric reasons it may be advantageous not to use the steepest descent manifolds (thimbles). We will discuss a variety of algorithms and their application to field theories with a fermionic sign problem and to quantum mechanical models, including real time dynamics.

Hosted by: Heikki Mantysaari

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