Microcanonical Simulation of Complex Actions: The Wess Zumino Witten Case

Details Microcanonical Simulation of Complex Actions: The Wess Zumino Witten Case Microcanonical Simulation of Complex Actions: The Wess Zumino Witten Case

2000-09-20

arxiv.org/abs/hep-lat/0009028v1

Int.J.Mod.Phys. C13 (2002) 587-594

Physics

High Energy Physics

High Energy Physics - Lattice

5 figures

Scientific paper

10.1142/S012918310200336X

We present the main results of our microcanonical simulation of the Wess Zumino Witten action functional. This action, being highly non-trivial and capable of exhibiting many different phase transitions, is chosen to be representative of general complex actions. We verify the applicability of microcanonical simulation by successfully obtaining two of the many critical points of the Wess Zumino Witten action. The microcanonical algorithm has the additional advantage of exhibiting critical behaviour for a small $8\times 8$ lattice. We also briefly discuss the subtleties that, in general, arise in simulating a complex action. Our algorithm for complex actions can be extended to the study of D-branes in the Wess Zumino Witten action.

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