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In a globalised world, inflation in a given country may be becoming less responsive to domestic economic activity, while being increasingly determined by international conditions. Consequently, understanding the international sources of…

计量经济学 · 经济学 2024-10-30 Ignacio Garrón , C. Vladimir Rodríguez-Caballero , Esther Ruiz

In this paper we present a path integral formulation of stochastic inflation, in which volume weighting can easily be implemented. With an in-depth study of inflation in a quartic potential, we investigate how the inflaton evolves and how…

高能物理 - 理论 · 物理学 2013-05-29 Steven Gratton

A mechanism of inflation from higher dimensions compactification is studied. An Early Universe capable of providing exponential growth for some dimensions and exponential contraction for others, giving therefore an explanation for the big…

广义相对论与量子宇宙学 · 物理学 2018-08-29 David Benisty , Eduardo I. Guendelman

Planning to explore the beginning of the Universe? A lightweight introductory guide to the theory of Inflation.

高能物理 - 理论 · 物理学 2016-12-21 Leonardo Senatore

The theory of the inflationary multiverse changes the way we think about our place in the world. According to its most popular version, our world may consist of infinitely many exponentially large parts, exhibiting different sets of…

高能物理 - 理论 · 物理学 2024-06-19 Andrei Linde

We propose a new approach to investigate inflation in a model-independent way, and in particular to elaborate the involved observables, through the introduction of the "scale factor potential". Through its use one can immediately determine…

广义相对论与量子宇宙学 · 物理学 2020-06-02 David Benisty , Eduardo I. Guendelman , Emmanuel N. Saridakis

The paper investigates the historical and contemporary pursuit-worthiness of cosmic inflation-the rationale for working on it (rather than necessarily the evidential support for claims to its approximate truth): what reasons existed, and…

物理学史与哲学 · 物理学 2024-01-05 William J. Wolf , Patrick M. Duerr

This article is an extension of the work of one of us (Coopersmith, 2011) in deriving the relationship between certain interest rates and the inflation rate of a two component economic system. We use the well-known Fisher relation between…

经济学 · 定量金融 2016-03-29 Michael Coopersmith , Pascal J. Gambardella

In a previous paper we proposed a new approach to the beginning of inflation -- a lingering universe. The universe begins in a lingering state with a nearly vanishing Hubble parameter. This calls into question the absolute age of the…

宇宙学与河外天体物理 · 物理学 2025-01-09 Brandon Melcher , Arnab Pradhan , Scott Watson

We study the possibility that inflation is driven by a scalar field together with a vector field minimally coupled to gravity. By assuming an effective potential that incorporates both fields into the action, we explore two distinct…

广义相对论与量子宇宙学 · 物理学 2024-12-09 Manuel Gonzalez-Espinoza , Ramon Herrera

I investigate multi-field inflationary models with fields that decay during inflation, leading to staggered inflation. This feature is natural in many models motivated by string theory, for instance if inflatons are related to interbrane…

天体物理学 · 物理学 2010-01-08 Thorsten Battefeld

A linear and lagged relationship between inflation and labor force change rate, p(t)= A1dLF(t-t1)/LF(t-t1)+A2 was found for developed economies. For the USA, A1=4.0, A2=-0.03075, and t1=2 years. It provides a RMS forecasting error (RMFSE)…

综合金融 · 定量金融 2008-12-02 Ivan O. Kitov , Oleg I. Kitov , Svetlana A. Dolinskaya

I explore properties of the inflationary flow equations. I show that the flow equations do not correspond directly to inflationary dynamics. Nevertheless, they can be used as a rather complicated algorithm for generating inflationary…

天体物理学 · 物理学 2009-11-10 Andrew R Liddle

In the standard cosmological picture the Universe underwent a brief period of near-exponential expansion, known as Inflation. This provides an explanation for structure formation through the amplification of perturbations by the rapid…

广义相对论与量子宇宙学 · 物理学 2019-04-03 Zack Fifer , Theo Torres , Sebastian Erne , Anastasios Avgoustidis , Richard J. A. Hill , Silke Weinfurtner

Regulators and academics are increasingly interested in the causal effect that algorithmic actions of a digital platform have on consumption. We introduce a general causal inference problem we call the steerability of consumption that…

机器学习 · 计算机科学 2023-02-13 Gary Cheng , Moritz Hardt , Celestine Mendler-Dünner

In this paper, we investigate the evolution of the early universe within an emergent fractional cosmological framework. The underlying formulation is conceptually rooted in generalized measure constructions, closely related to fractal…

广义相对论与量子宇宙学 · 物理学 2026-04-16 S. M. M. Rasouli

In this work, we use the Gouy-Stodola theorem to calculate the entropy production rate in the inflationary epoch of the universe. This theorem allows us the simple calculation of entropy and entropy production rate occasioned by the…

广义相对论与量子宇宙学 · 物理学 2026-02-25 R. H. Longaresi , S. D. Campos

We consider the Standard Models of particle physics and hot big bang cosmology, and review the theoretical and experimental motivations for extending these models to include supersymmetry and inflation. An obvious extension would be to…

高能物理 - 唯象学 · 物理学 2008-11-26 S. F. King , D. A. J. Rayner

I study a model which describes the birth of the universe using a global topological phase transition with a complex manifold where the time, $\tau$, is considered as a complex variable. Before the big bang $\tau$ is a purely imaginary…

广义相对论与量子宇宙学 · 物理学 2017-05-24 Mauricio Bellini

The contradiction between physical and economical sciences concerning the growth of the production/consumption mechanism is analyzed. It is then shown that if one wishes to keep the security level stable or to enhance it in a growing…

物理与社会 · 物理学 2013-12-03 Angelo Tartaglia