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Irreversible Thermodynamic Description of Dark Matter and Radiation Creation during Inflationary Reheating
المؤلفون المشاركون
Harko, Tiberiu
Su, Juntong
Liang, Shi-Dong
المصدر
Advances in High Energy Physics
العدد
المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-24، 24ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2017-10-18
دولة النشر
مصر
عدد الصفحات
24
التخصصات الرئيسية
الملخص EN
We investigate matter creation processes during the reheating period of the early Universe, by using the thermodynamic of open systems.
The Universe is assumed to consist of the inflationary scalar field, which, through its decay, generates relativistic matter and pressureless dark matter.
The inflationary scalar field transfers its energy to the newly created matter particles, with the field energy decreasing to near zero.
The equations governing the irreversible matter creation are obtained by combining the thermodynamics description of the matter creation and the gravitational field equations.
The role of the different inflationary scalar field potentials is analyzed by using analytical and numerical methods.
The values of the energy densities of relativistic matter and dark matter reach their maximum when the Universe is reheated up to the reheating temperature, which is obtained as a function of the scalar field decay width, the scalar field particle mass, and the cosmological parameters.
Particle production leads to the acceleration of the Universe during the reheating phase, with the deceleration parameter showing complex dynamics.
Once the energy density of the scalar field becomes negligible with respect to the matter densities, the expansion of the Universe decelerates, and inflation has a graceful exit.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Su, Juntong& Harko, Tiberiu& Liang, Shi-Dong. 2017. Irreversible Thermodynamic Description of Dark Matter and Radiation Creation during Inflationary Reheating. Advances in High Energy Physics،Vol. 2017, no. 2017, pp.1-24.
https://search.emarefa.net/detail/BIM-1122187
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Su, Juntong…[et al.]. Irreversible Thermodynamic Description of Dark Matter and Radiation Creation during Inflationary Reheating. Advances in High Energy Physics No. 2017 (2017), pp.1-24.
https://search.emarefa.net/detail/BIM-1122187
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Su, Juntong& Harko, Tiberiu& Liang, Shi-Dong. Irreversible Thermodynamic Description of Dark Matter and Radiation Creation during Inflationary Reheating. Advances in High Energy Physics. 2017. Vol. 2017, no. 2017, pp.1-24.
https://search.emarefa.net/detail/BIM-1122187
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1122187
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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