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On non-Gaussianities in two-field poly-instanton inflation
Gao, X; Shukla, P; Gao, X (reprint author), Werner Heisenberg Inst, Max Planck Inst Phys, Fohringer Ring 6, D-80805 Munich, Germany.
2013
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
ISSN1029-8479
期号3页码:61
摘要In the context of Type IIB LARGE volume orientifold setup equipped with poly-instanton corrections, the standard single-field poly-instanton inflation driven by a 'Wilson' divisor volume modulus is generalized by the inclusion of respective axion modulus. This two-tield dynamics results in a "Roulette" type inflation with the presence of several inflationary trajectories which could produce 50 (or more) e-foldings. The evolution of various trajectories along with physical observables are studied. The possibility of generating primordial non-Gaussianities in the slow-roll as well as in the beyond slow-roll region is investigated. We find that although the non-linearity parameters are quite small during the slow-roll regime, the same are significantly enhanced in the beyond slow-roll regime nvestigated up to the end of inflation.
部门归属[Gao, Xin; Shukla, Pramod] Werner Heisenberg Inst, Max Planck Inst Phys, D-80805 Munich, Germany; [Gao, Xin] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
关键词String Theory Calabi-yau Compactifications Model Orientifolds Flatness Universe Horizon
学科领域Physics
资助者MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation
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收录类别SCI
语种英语
资助者MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation ; MPG-CAS Joint Doctoral Promotion Programme; Alexander von Humboldt Foundation
WOS记录号WOS:000317521200061
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15409
专题理论物理所SCI论文
通讯作者Gao, X (reprint author), Werner Heisenberg Inst, Max Planck Inst Phys, Fohringer Ring 6, D-80805 Munich, Germany.
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GB/T 7714
Gao, X,Shukla, P,Gao, X . On non-Gaussianities in two-field poly-instanton inflation[J]. JOURNAL OF HIGH ENERGY PHYSICS,2013(3):61.
APA Gao, X,Shukla, P,&Gao, X .(2013).On non-Gaussianities in two-field poly-instanton inflation.JOURNAL OF HIGH ENERGY PHYSICS(3),61.
MLA Gao, X,et al."On non-Gaussianities in two-field poly-instanton inflation".JOURNAL OF HIGH ENERGY PHYSICS .3(2013):61.
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