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Effect of Strong Magnetic Field on Competing Order Parameters in Two-Flavor Dense Quark Matter
Joint Authors
Jaikumar, Prashanth
Mandal, Tanumoy
Source
Advances in High Energy Physics
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-14
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
We study the effect of strong magnetic field on competing chiral and diquark order parameters in a regime of moderately dense quark matter.
The interdependence of the chiral and diquark condensates through nonperturbative quark mass and strong coupling effects is analyzed in a two-flavor Nambu-Jona-Lasinio (NJL) model.
In the weak magnetic field limit, our results agree qualitatively with earlier zero-field studies in the literature that find a critical coupling ratio G D / G S ~ 1.1 below which chiral or superconducting order parameters appear almost exclusively.
Above the critical ratio, there exists a significant mixed broken phase region where both gaps are nonzero.
However, a strong magnetic field B ≳ 1 0 18 G disrupts this mixed broken phase region and changes a smooth crossover found in the weak-field case to a first-order transition for both gaps at almost the same critical density.
Our results suggest that in the two-flavor approximation to moderately dense quark matter strong magnetic field enhances the possibility of a mixed phase at high density, with implications for the structure, energetics, and vibrational spectrum of neutron stars.
American Psychological Association (APA)
Mandal, Tanumoy& Jaikumar, Prashanth. 2017. Effect of Strong Magnetic Field on Competing Order Parameters in Two-Flavor Dense Quark Matter. Advances in High Energy Physics،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1122132
Modern Language Association (MLA)
Mandal, Tanumoy& Jaikumar, Prashanth. Effect of Strong Magnetic Field on Competing Order Parameters in Two-Flavor Dense Quark Matter. Advances in High Energy Physics No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1122132
American Medical Association (AMA)
Mandal, Tanumoy& Jaikumar, Prashanth. Effect of Strong Magnetic Field on Competing Order Parameters in Two-Flavor Dense Quark Matter. Advances in High Energy Physics. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1122132
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122132