Quark-based Description of Nuclear Matter with Simulated Annealing

Details Quark-based Description of Nuclear Matter with Simulated Annealing Quark-based Description of Nuclear Matter with Simulated Annealing

1993-05-05

arxiv.org/abs/nucl-th/9305002v1

Physics

Nuclear Physics

Nuclear Theory

Latex with Revtex, 10 postscript figures (available from the authors), SCRI-050593

Scientific paper

10.1063/1.168491

We calculate ground-state properties of a many-quark system in the string-flip model using variational Monte Carlo methods. The many-body potential energy of the system is determined by finding the optimal grouping of quarks into hadrons. This (optimal) assignment problem is solved by using the stochastic optimization technique of simulated annealing. Results are presented for the energy and length-scale for confinement as a function of density. These results show how quarks clustering decreases with density and characterize the nuclear- to quark-matter transition. We compare our results to a previously published work with a similar model which uses, instead, a pairing approach to the optimization problem.

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