2014
DOI: 10.1007/jhep07(2014)146
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Monodromy inflation in SUSY QCD

Abstract: The discovery of a large tensor-to-scalar ratio by the BICEP2 experiment points to large field excursions during inflation. One framework that predicts large r is monodromy inflation. While discussed mainly in the context of string theory, the phenomenon can be illustrated and studied in the well-understood framework of SUSY QCD with a large number of colors. We discuss the requirements for viable inflation as well as various difficulties for model building, including tunneling, tuning, and the species problem. Show more

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Cited by 27 publications
(33 citation statements)
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“…The motion of 7-branes is on the same footing in some sense, as 7-brane position moduli arise from complex structure moduli in F-theory. 10 9 Our discussion here is not exhaustive: other examples include configurations with moving branes [24,32,33,35], as well as some of the scenarios in [36][37][38][39][40][41][42][43][44][45][46][47]; some of these may also be understood via dualities.…”
Section: Dual Axionsmentioning
confidence: 99%
See 1 more Smart Citation
“…The motion of 7-branes is on the same footing in some sense, as 7-brane position moduli arise from complex structure moduli in F-theory. 10 9 Our discussion here is not exhaustive: other examples include configurations with moving branes [24,32,33,35], as well as some of the scenarios in [36][37][38][39][40][41][42][43][44][45][46][47]; some of these may also be understood via dualities.…”
Section: Dual Axionsmentioning
confidence: 99%
“…Phenomenologically, the discrete examples of p obtained in this and other works, and a more systematic generalization if that can be accomplished, relate directly to various cosmological observables. It is of great interest to understand the spectrum of UV-complete values of r (a detectable amplitude of tensor fluctuations being the main model-independent signature of monodromy inflation) as well as n s (which depends on p and also on the number of fields involved [36][37][38][39][40][41][42][43][44][45][46][47]). In addition, one would like to map out the more detailed, but model-dependent signatures from the residual oscillations in the potential (1.1) [25,26] generated by the sectors of the physics that respect the underlying periodicity φ → φ + 2πf .…”
Section: Jhep09(2014)123mentioning
confidence: 99%
“…[15][16][17]). The monodromic behaviors of the pseudo-NGB also realize models with an effective decay constant larger than the Planck scale, which is originally proposed in models based on string theory [18,19] and are generalized in field theoretic approaches [20][21][22][23][24]. It is also pointed out that natural inflation potential generated by an anomaly in a large N c gauge dynamics has an effective decay constant much larger than the scale of the spontaneous symmetry breaking [25].…”
Section: Jhep11(2014)147mentioning
confidence: 96%
“…(6), this type of barrier can only exist if E < 0 and α ∈ (0.5, 0.75). 3 To illustrate this point, we present in Fig. 1 the potential in φ given in Eq.…”
Section: Reducing To a Single-field Potentialmentioning
confidence: 99%
“…The decay of a false vacuum is a complex problem with numerous applications in cosmology [1][2][3][4][5][6] and is particularly important in the study of baryogenesis [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] (although there are mechanisms for producing the baryon asymmetry that do not require calculating the decay of the false vacuum [27][28][29][30][31][32][33]). Calculating tunneling rates is also an important problem in the study of vacuum stability [34][35][36][37][38][39][40].…”
Section: Introductionmentioning
confidence: 99%