Exposition to Staggered Multi-Field Inflation

نویسندگان

چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Generation of perturbation after multi - field inflation

We explore a new possibility that some inflaton fields in multi-field inflation models satisfy the observed value of the spectral index so that the curvature perturbation generated by them through post-inflationary dynamics may be relevant for the current observations. We illustrate this point using a simple and reasonable multi-field chaotic inflation model motivated from string theory. Possib...

متن کامل

Perturbations in generalized multi-field inflation

We study the linear perturbations of multi-field inflationary models governed by a Lagrangian which is a general function of the scalar fields and of a global kinetic term combining their spacetime gradients with an arbitrary field space metric. Our analysis includes k -inflation, Dirac-Born-Infeld inflation and its multi-field extensions which have been recently studied. For this general class...

متن کامل

Multi-field Inflation with a Random Potential

Motivated by the possibility of inflation in the cosmic landscape, which may be approximated by a complicated potential, we study the density perturbations in multi-field inflation with a random potential. The random potential causes the inflaton to undergo a Brownian motion with a drift in the D-dimensional field space, allowing the entropic perturbation modes to continuously and randomly feed...

متن کامل

Conceptual exposition of the effect of inflation on bank performance

Despite the fact that, banks can withstand the effects of inflation in the short run, since banking system mostly operates with reference to interest rate and maturity of financial instruments with less concern about the purchasing power of money. However, the banking system cannot absorb the shocks in the long run. The objective of this paper is to conceptually expose the effect of inflation o...

متن کامل

Testing and comparing tachyon inflation to single standard field inflation

We study the evolution of perturbations during the domination and decay of a massive particle species whose mass and decay rate are allowed to depend on the expectation value of a light scalar field. We specialize to the case where the light field is slow-rolling, showing that during a phase of inhomogeneous mass-domination and decay the isocurvature perturbation of the light field is converted...

متن کامل

ذخیره 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: Nuclear Physics B - Proceedings Supplements

سال: 2009

ISSN: 0920-5632

DOI: 10.1016/j.nuclphysbps.2009.07.051