000172332 001__ 172332 000172332 005__ 20211110124900.0 000172332 0247_ $$2arXiv$$aarXiv:1409.5350 000172332 0247_ $$2altmetric$$aaltmetric:2696251 000172332 0247_ $$2inspire$$ainspire:1317862 000172332 037__ $$aPUBDB-2014-03682 000172332 041__ $$aEnglish 000172332 0881_ $$aDESY-14-149 000172332 088__ $$2DESY$$aDESY-14-149 000172332 1001_ $$0P:(DE-H253)PIP1013212$$aWestphal, Alexander$$b0$$eCorresponding Author$$udesy 000172332 245__ $$aString Cosmology - Large-Field Inflation in String Theory 000172332 260__ $$c2014 000172332 3367_ $$2DRIVER$$apreprint 000172332 3367_ $$028$$2EndNote$$aElectronic Article 000172332 3367_ $$0PUB:(DE-HGF)25$$2PUB:(DE-HGF)$$aPreprint$$bpreprint$$mpreprint$$s172332 000172332 3367_ $$2BibTeX$$aARTICLE 000172332 3367_ $$0PUB:(DE-HGF)15$$2PUB:(DE-HGF)$$aInternal Report$$mintrep 000172332 500__ $$a34 pages, 1 figure, LaTeX, to be published in 'Perspectives in String Phenomenology' 000172332 520__ $$aThis is a short review of string cosmology. We wish to connect string-scale physics as closely as possible to observables accessible to current or near-future experiments. Our possible best hope to do so is a description of inflation in string theory. The energy scale of inflation can be as high as that of Grand Unification (GUT). If this is the case, this is the closest we can possibly get in energy scales to string-scale physics. Hence, GUT-scale inflation may be our best candidate phenomenon to preserve traces of string-scale dynamics. Our chance to look for such traces is the primordial gravitational wave, or tensor mode signal produced during inflation. For GUT-scale inflation this is strong enough to be potentially visible as a B-mode polarization of the cosmic microwave background (CMB). Moreover, a GUT-scale inflation model has a trans-Planckian excursion of the inflaton scalar field during the observable amount of inflation. Such large-field models of inflation have a clear need for symmetry protection against quantum corrections. This makes them ideal candidates for a description in a candidate fundamental theory like string theory. At the same time the need of large-field inflation models for UV completion makes them particularly susceptible to preserve imprints of their string-scale dynamics in the inflationary observables, the spectral index $n_s$ and the fractional tensor mode power $r$. Hence, we will focus this review on axion monodromy inflation as a mechanism of large-field inflation in string theory. 000172332 536__ $$0G:(DE-HGF)POF2-514$$a514 - Theoretical Particle Physics (POF2-514)$$cPOF2-514$$fPOF II$$x0 000172332 588__ $$aDataset connected to arXivarXiv 000172332 650_7 $$2autogen$$ainflation: model 000172332 650_7 $$2autogen$$ascale: inflation 000172332 650_7 $$2autogen$$acosmic background radiation: polarization 000172332 650_7 $$2autogen$$agravitational radiation: primordial 000172332 650_7 $$2autogen$$acorrection: quantum 000172332 650_7 $$2autogen$$afield theory: scalar 000172332 650_7 $$2autogen$$astring model 000172332 650_7 $$2autogen$$astring 000172332 650_7 $$2autogen$$acosmological model 000172332 650_7 $$2autogen$$agrand unified theory 000172332 650_7 $$2autogen$$apower spectrum 000172332 650_7 $$2autogen$$afractional 000172332 650_7 $$2autogen$$amonodromy 000172332 650_7 $$2autogen$$ainflaton 000172332 650_7 $$2autogen$$aB-mode 000172332 650_7 $$2autogen$$aaxion 000172332 693__ $$0EXP:(DE-MLZ)NOSPEC-20140101$$5EXP:(DE-MLZ)NOSPEC-20140101$$eNo specific instrument$$x0 000172332 8564_ $$uhttps://bib-pubdb1.desy.de/record/172332/files/PUBDB-2014-03682.pdf$$yOpenAccess 000172332 8564_ $$uhttps://bib-pubdb1.desy.de/record/172332/files/PUBDB-2014-03682.jpg?subformat=icon-1440$$xicon-1440$$yOpenAccess 000172332 8564_ $$uhttps://bib-pubdb1.desy.de/record/172332/files/PUBDB-2014-03682.jpg?subformat=icon-180$$xicon-180$$yOpenAccess 000172332 8564_ $$uhttps://bib-pubdb1.desy.de/record/172332/files/PUBDB-2014-03682.jpg?subformat=icon-640$$xicon-640$$yOpenAccess 000172332 909CO $$ooai:bib-pubdb1.desy.de:172332$$pdnbdelivery$$pdriver$$pVDB$$popen_access$$popenaire 000172332 9101_ $$0I:(DE-588b)2008985-5$$6P:(DE-H253)PIP1013212$$aDeutsches Elektronen-Synchrotron$$b0$$kDESY 000172332 9132_ $$0G:(DE-HGF)POF3-611$$1G:(DE-HGF)POF3-610$$2G:(DE-HGF)POF3-600$$aDE-HGF$$bForschungsbereich Materie$$lMaterie und Universum$$vFundamental Particles and Forces $$x0 000172332 9131_ $$0G:(DE-HGF)POF2-514$$1G:(DE-HGF)POF2-510$$2G:(DE-HGF)POF2-500$$3G:(DE-HGF)POF2$$4G:(DE-HGF)POF$$aDE-HGF$$bStruktur der Materie$$lElementarteilchenphysik$$vTheoretical Particle Physics$$x0 000172332 9141_ $$y2014 000172332 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess 000172332 915__ $$0StatID:(DE-HGF)0580$$2StatID$$aPublished 000172332 9201_ $$0I:(DE-H253)T-20120731$$kT$$lTheorie-Gruppe$$x0 000172332 980__ $$apreprint 000172332 980__ $$aVDB 000172332 980__ $$aUNRESTRICTED 000172332 980__ $$aFullTexts 000172332 980__ $$aintrep 000172332 980__ $$aI:(DE-H253)T-20120731 000172332 9801_ $$aFullTexts