New universal attractor in nonminimally coupled gravity: Linear inflation
نویسندگان
چکیده
منابع مشابه
Fresh inflation with nonminimally coupled inflaton field
I study a fresh inflationary model with a scalar field nonminimally coupled to gravity. An example is examined. I find that, as larger is the value of p (a ∼ tp), smaller (but larger in its absolute value) is the necessary value of the coupling ξ to the inflaton field fluctuations can satisfy a scale invariant power spectrum.
متن کاملUniversal attractor for inflation at strong coupling.
We introduce a novel nonminimal coupling between gravity and the inflaton sector. Remarkably, for large values of this coupling all models asymptote to a universal attractor. This behavior is independent of the original scalar potential and generalizes the attractor in the φ4 theory with nonminimal coupling to gravity. The attractor is located in the "sweet spot" of parameter values that are pr...
متن کاملSearching for nonminimally coupled scalar hairs.
In this work we study the asymptotically flat, static, and spherically symmetric black-hole solutions of the theory described by the action
متن کاملGravity Waves and Linear Inflation from Axion Monodromy
Wrapped branes in string compactifications introduce a monodromy that extends the field range of individual closed-string axions to beyond the Planck scale. Furthermore, approximate shift symmetries of the system naturally control corrections to the axion potential. This suggests a general mechanism for chaotic inflation driven by monodromy-extended closedstring axions. We systematically analyz...
متن کاملMass Inflation in Quantum Gravity
Using the canonical formalism for spherically symmetric black hole inside the apparent horizon we investigate the mass inflation in the Reissner-Nordström black hole in the framework of quantum gravity. It is shown that like in classical gravity the combination of the effects of the influx coming from the past null infinity and the outflux backscattered by the black hole’s curvature causes the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2018
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.97.123514