3.8 Proceedings Paper

The sign problem and the Lefschetz thimble

Journal

EXTREME QCD 2012 (XQCD)
Volume 432, Issue -, Pages -

Publisher

IOP PUBLISHING LTD
DOI: 10.1088/1742-6596/432/1/012025

Keywords

-

Funding

  1. AuroraScience-Provincia Autonoma di Trento and INFN
  2. Research Executive Agency (REA)
  3. European Union [PITN-GA-2009-238353]
  4. INFN
  5. MIUR [PRIN2009, 20093BMNPR 004]

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Recently, we have introduced a novel approach to deal with the sign problem that prevents the Monte Carlo simulations of a class of quantum field theories (QFTs). The idea is to formulate the QFT on a Lefschetz thimble. Here we review the formulation of our approach and describe the Aurora Monte Carlo algorithm that we are currently testing on a scalar field theory with a sign problem.

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