[Theory-seminars] Theory Seminar (Corrected)

[Mary Fox]

Theory Center Seminar
Monday, May 16, 2016
1:00 p.m. (coffee at 12:45 p.m.)
CEBAF Center, Room L102

*Solving Sign Problems in Complex Space
*Paulo Bedaque
University of Maryland

The sign problem has prevented the use of lattice field theory to many 
physics systems, including the
QCD-based study of nuclear/quark matter. We introduce an approach to 
bypass the problem --- closely
related to the "Lefschetz thimble" approach --- involving the 
complexification of the field variables and
a deformation of the region of integration. We discuss conceptual and 
algorithmic issues appearing in
this approach and apply it to simple models in quantum mechanics and 
field theories in small lattices.
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