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arXiv · 1009.3312

BEC-BCS crossover driven by the axial anomaly in the NJL model

Hiroaki Abuki·Gordon Baym·Tetsuo Hatsuda·Naoki Yamamoto
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Abstract

We study the QCD phase structure in the three-flavor Nambu--Jona-Lasinio model, incorporating the chiral-diquark interplay due to the axial anomaly. We demonstrate that for a certain range of model parameters, the low temperature critical point predicted by a Ginzburg-Landau analysis appears in the phase diagram. In addition, we show that the axial anomaly presents a new scenario for a possible BEC-BCS crossover in the color-flavor locked phase of QCD.

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Hiroaki Abuki, Gordon Baym, Tetsuo Hatsuda, Naoki Yamamoto. 2010-09-17. BEC-BCS crossover driven by the axial anomaly in the NJL model. https://doi.org/10.1063/1.3536585

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