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arXiv · 1508.06057

Inhomogeneous condensation in effective models for QCD using the finite-mode approach

Achim Heinz·Francesco Giacosa·Marc Wagner·Dirk H. Rischke
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Abstract

We use a numerical method, the finite-mode approach, to study inhomogeneous condensation in effective models for QCD in a general framework. Former limitations of considering a specific ansatz for the spatial dependence of the condensate are overcome. Different error sources are analyzed and strategies to minimize or eliminate them are outlined. The analytically known results for $1+1$ dimensional models (such as the Gross-Neveu model and extensions of it) are correctly reproduced using the finite-mode approach. Moreover, the NJL model in $3+1$ dimensions is investigated and its phase diagram is determined with particular focus on the inhomogeneous phase at high density.

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Achim Heinz, Francesco Giacosa, Marc Wagner, Dirk H. Rischke. 2016-01-11. Inhomogeneous condensation in effective models for QCD using the finite-mode approach. https://doi.org/10.1103/physrevd.93.014007

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