{"title":"Highly magnetized quark matter in the chiral limit","authors":"S. A. Ferraris, J. P. Carlomagno, A. G. Grunfeld","doi":"10.1002/asna.20230163","DOIUrl":null,"url":null,"abstract":"<p>We examine the behavior of highly magnetized two-light-flavor quark matter within the context of a nonlocal NJL-type model. This analysis assumes the chiral limit <math>\n <semantics>\n <mrow>\n <mfenced>\n <mrow>\n <msub>\n <mi>m</mi>\n <mi>c</mi>\n </msub>\n <mo>=</mo>\n <mn>0</mn>\n </mrow>\n </mfenced>\n </mrow>\n <annotation>$$ \\left({m}_c=0\\right) $$</annotation>\n </semantics></math> and incorporates the interaction between fermions and the Polyakov loop. Our calculations utilize a covariant Gaussian form factor. We present phase diagrams on the <math>\n <semantics>\n <mrow>\n <mi>T</mi>\n <mo>−</mo>\n <mi>μ</mi>\n </mrow>\n <annotation>$$ T-\\mu $$</annotation>\n </semantics></math> plane, illustrating different magnetic field strengths. Additionally, we examine the critical endpoint's placement and the de Haas-Van Alphen transitions within the chiral restored phase, observing their temperature-dependent characteristics.</p>","PeriodicalId":55442,"journal":{"name":"Astronomische Nachrichten","volume":"345 2-3","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2023-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Astronomische Nachrichten","FirstCategoryId":"101","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/asna.20230163","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
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Abstract
We examine the behavior of highly magnetized two-light-flavor quark matter within the context of a nonlocal NJL-type model. This analysis assumes the chiral limit and incorporates the interaction between fermions and the Polyakov loop. Our calculations utilize a covariant Gaussian form factor. We present phase diagrams on the plane, illustrating different magnetic field strengths. Additionally, we examine the critical endpoint's placement and the de Haas-Van Alphen transitions within the chiral restored phase, observing their temperature-dependent characteristics.
期刊介绍：
Astronomische Nachrichten, founded in 1821 by H. C. Schumacher, is the oldest astronomical journal worldwide still being published. Famous astronomical discoveries and important papers on astronomy and astrophysics published in more than 300 volumes of the journal give an outstanding representation of the progress of astronomical research over the last 180 years. Today, Astronomical Notes/ Astronomische Nachrichten publishes articles in the field of observational and theoretical astrophysics and related topics in solar-system and solar physics. Additional, papers on astronomical instrumentation ground-based and space-based as well as papers about numerical astrophysical techniques and supercomputer modelling are covered. Papers can be completed by short video sequences in the electronic version. Astronomical Notes/ Astronomische Nachrichten also publishes special issues of meeting proceedings.
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