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000221504 005__ 20211110131248.0
000221504 0247_ $$2arXiv$$aarXiv:1507.02277
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000221504 041__ $$aEnglish
000221504 0881_ $$aDESY-15-115; arXiv:1507.02277
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000221504 088__ $$2arXiv$$aarXiv:1507.02277
000221504 1001_ $$0P:(DE-H253)PIP1018435$$aBroy, Benedict$$b0$$eCorresponding author
000221504 245__ $$aPole Inflation - Shift Symmetry and Universal Corrections
000221504 260__ $$c2015
000221504 300__ $$a9
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000221504 520__ $$aAn appealing explanation for the Planck data is provided by inflationary models with a non-canonical kinetic term: a Laurent expansion of the kinetic function translates into a potential with a nearly shift-symmetric plateau in canonical fields. The shift symmetry can be broken at large field values by including higher-order poles. We show that the resulting corrections to the inflationary dynamics and predictions are universal at lowest order, and can induce power loss at large angular scales. At lowest order there are no corrections from a pole of one order higher; this is referred to as extended no-scale in string theory and we explain why this is a general phenomenon. Finally, we outline which other corrections may arise as string loop corrections.
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000221504 536__ $$0G:(DE-HGF)2015_IFV-HZ-NG-603$$aHZ-NG-603 - Strings and Cosmology - an Interface for Testing fundamental Theories (2015_IFV-HZ-NG-603)$$c2015_IFV-HZ-NG-603$$x1
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000221504 650_7 $$2autogen$$ainflation: model
000221504 650_7 $$2autogen$$apole
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000221504 650_7 $$2autogen$$aLaurent expansion
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000221504 650_7 $$2autogen$$astring
000221504 650_7 $$2autogen$$aPlanck
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000221504 7001_ $$aGalante, Mario$$b1
000221504 7001_ $$aRoest, Diederik$$b2
000221504 7001_ $$0P:(DE-H253)PIP1013212$$aWestphal, Alexander$$b3
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