Results 101 to 110 of about 9,790 (281)
Journal of High Energy PhysicsFibre inflationary models are constructed in type-IIB string flux compactification. These models have been shown to be in agreement with the cosmological observations under appropriate choices of parameters, which originate from their string theory ...
Dibya Chakraborty, Rudnei O. Ramos
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Journal of Cosmology and Astroparticle Physics, 2007 In this paper, warm inflationary models on a brane scenario are studied. Here we consider slow-roll inflation and high-dissipation regime in a high-energy scenario. General conditions required for these models to be realizable are derived. We describe scalar and tensor perturbations for these scenarios.
Cid, M. Antonella +2 more
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Business Strategy and the Environment, EarlyView.ABSTRACT The aim of this study is to examine the impact of corruption control, as a public institutional mechanism, on hazardous waste emissions of private sector entities. We also examine the extent to which Agenda 2030 moderates the relationship. We analyse data from the top 500 global companies.
Babajide Oyewo +3 more
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Coupled Quintessence Inspired by Warm Inflation
UniverseWe investigate a coupled quintessence cosmological model in which a dark-energy scalar field with an exponential potential interacts directly with a dark-matter fluid through a dissipative term inspired by warm inflation.
Paulo M. Sá
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Business Strategy and the Environment, EarlyView.ABSTRACT Circular supply chain management (CSCM) practices are seen as a solution for addressing society's many significant environmental challenges. Although existing studies recognise the importance of reverse engineering in combating poverty, there is limited knowledge about its effectiveness in shaping CSCM practices to address climate change and ...
Yaw Agyabeng‐Mensah +2 more
wiley +1 more source
Observational constraints on monomial warm inflation
, 2016 Warm inflation is, as of today, one of the best motivated mechanisms for explaining an early inflationary period. In this paper, we derive and analyze the current bounds on warm inflation with a monomial potential U alpha phi(P), using the constraints ...
Visinelli, Luca,
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Business Strategy and the Environment, EarlyView.ABSTRACT Firms are increasingly looking into carbon dioxide removal (CDR), a set of options to take past emissions of greenhouse gases out of the atmosphere. Often two basic categories of CDR are distinguished: nature‐based solutions, such as planting trees or restoring wetlands, and technology‐based solutions, such as various forms of carbon capture ...
Sabrina Mili +3 more
wiley +1 more source
Nuclear Physics, 2023 In this work, we study warm inflationary scenario based on a deformation of R2 gravity. We start considering Rp and assume p=2(1+δ) with δ≪1 so that we simply obtain warm R2 inflation when setting δ=0. We then derive the potential in the Einstein frame and consider a dissipation parameter of the form Γ=C1T with C1 being a coupling parameter.
Payaka, Apirak +2 more
openaire
Effect of Dissipation on Warm Chromo-Natural Inflation
, 2023 We examined the chromo-natural inflation in the context of warm inflation with variable dissipation coefficient. The dynamical equations of this model are obtained. We studied the cosmological perturbation theory in this model.
Deshamukhya, Atri +3 more
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European Physical Journal C: Particles and Fields, 2017 The warm inflation scenario in view of the modified Chaplygin gas is studied. We consider the inflationary expansion to be driven by a standard scalar field whose decay ratio $$\Gamma $$ Γ has a generic power-law dependence with the scalar field $$\phi $$
Abdul Jawad +3 more
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