Warm tachyon inflation and swampland criteria

作     者：Abolhassan Mohammadi Tayeb Golanbari Haidar Sheikhahmadi Kosar Sayar Lila Akhtari M.A.Rasheed Khaled Saaidi Abolhassan Mohammadi;Tayeb Golanbari;Haidar Sheikhahmadi;Kosar Sayar;Lila Akhtari;M.A.Rasheed;Khaled Saaidi

作者机构：Department of PhysicsFaculty of ScienceUniversity of KurdistanPasdaran St.P.O.Box 66177-15175SanandajIran Development Center for Research and Training(DCRT)University of Human DevelopmentSulaimaniKurdistan RegionIraq Center for Space ResearchNorth-West UniversityMafikengSouth Africa School of AstronomyInstitute for Research in Fundamental Sciences(IPM)P.O.Box 19395-5531TehranIran Department of PhysicsCollege of ScienceUniversity of SulaimaniSulaimaniKurdistan RegionIraq 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2020年第44卷第9期

页      面：162-174页

核心收录：

学科分类：02[经济学] 0709[理学-地质学] 0202[经济学-应用经济学] 0201[经济学-理论经济学] 020204[经济学-金融学（含∶保险学）] 020203[经济学-财政学（含∶税收学）] 0708[理学-地球物理学] 0804[工学-仪器科学与技术] 0827[工学-核科学与技术] 020101[经济学-政治经济学] 0703[理学-化学] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：The work of A.M.has been supported financially by‘Vice Chancellorship of Research and Technology,University of Kurdistan’under research Project No.98/10/34704 The work of T.G.has been supported financially by‘Vice Chancellorship of Research and Technology,University of Kurdistan’under research Project No.98/11/2724 

主　　题：warm inflation tachyon scalar field slow-roll approximation swampland criterion 

摘      要：In this study,the scenario of a two-component warm tachyon inflation is considered,where the tachyon field plays the role of the inflaton by driving the *** inflation,the tachyon scalar field interacts with the other component of the Universe,which is assumed to be photon gas,i.e.,*** interacting term contains a dissipation coefficient,and the study is modeled based on two different and familiar choices of the coefficient that were studied in the *** employing the latest observational data,the acceptable ranges for the free parameters of the model are *** any choice within the estimated ranges,there is an acceptable concordance between the theoretical predictions and *** the model is established based on several assumptions,it is crucial to verify their validity for the obtained values of the free parameters of the *** is found that the model is not self-consistent for all values of the ranges,and for some cases,the assumptions are ***,to achieve both self-consistency and agreement with the data,the parameters of the model must be ***,we consider the recently proposed swampland conjecture,which imposes two conditions on the inflationary *** criteria rule out some inflationary models;however,warm inflation is among those that successfully satisfy the swampland *** conduct a precise investigation,which indicates that the proposed warm tachyon inflation cannot satisfy the swampland criteria for some *** fact,for the first case of the dissipation coefficient,in which,there is dependency only on the scalar field,the model agrees with observational ***,it is in direct tension with the swampland ***,for the second case,wherein the dissipation coefficient has a dependency on both the scalar field and temperature,the model exhibits acceptable agreement with observational data,and suitably satisfies the swampland criteria.