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artículo con referato
"BEC-BCS crossover in a cold and magnetized two color NJL model"
Dyana C. Duarte, P.G. Allen, R.L.S. Farias, Pedro H.A. Manso, Rudnei O. Ramos and N.N. Scoccola
Phys. Rev. D 93(2) (2016) 025017/1-13
The BEC-BCS crossover for a Nambu-Jona-Lasinio (NJL) model with diquark interactions is studied in the presence of an external magnetic field. Particular attention is paid to different regularization schemes used in the literature. A thorough comparison of results is performed for the case of a cold and magnetized two-color NJL model. According to our results, the critical chemical potential for the BEC transition exhibits a clear inverse magnetic catalysis effect for magnetic fields in the range 1 ≲ eB/mπ2 ≲ 20. As for the BEC-BCS crossover, the corresponding critical chemical potential is very weakly sensitive to magnetic fields up to eB 9mπ2, showing a much smaller inverse magnetic catalysis as compared to the BEC transition, and displays a strong magnetic catalysis from this point on.
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