Particle Projection Using a Complex Langevin Method
Using the complex Langevin method for stochastic quantization, we implement a particle-number projection technique on the partition function of spin-1/2 fermions at finite temperature on the lattice. In this presentation, we discuss the method and show results for the free energy of polarized systems of Nup+Ndown particles in a finite volume, as well as virial coefficients of various orders.
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Applications Beyond QCD