Study on early inflationary phase using a new form of non-canonical scalar field model

2021 ◽  
Vol 53 (3) ◽  
Author(s):  
Mithun Bairagi ◽  
Amitava Choudhuri
Keyword(s):  
Scalar Field ◽  
Field Model ◽  
Scalar Field Model ◽  
Inflationary Phase ◽  
New Form ◽  
Canonical Scalar Field

The impact of deformed space–space parameters into canonical scalar field model with exponential potential. The case of spatially flat Friedmann–Lemaître–Robertson–Walker (FLRW) universe

2021 ◽  
pp. 2150138
Author(s):  
T. Toghrai ◽  
N. Mansour ◽  
A. K. Daoudia ◽  
A. El Boukili ◽  
M. B. Sedra
Keyword(s):  
Scalar Field ◽  
Field Model ◽  
Exponential Potential ◽  
Scalar Field Model ◽  
Flat Universe ◽  
Flrw Universe ◽  
The Impact ◽  
Canonical Scalar Field

In this work, we propose a model of noncommutative cosmology through the deformation of minisuperspace. We focus on an exponentially potential with a homogeneous scalar field minimally coupled to gravity in the spatially flat universe. To process, we use a particular case of noncommutativity by making a deformation of space coordinates only. Then, we compare results in both the commutative model and the noncommutative one.

scholarly journals From scalar field theories to supersymmetric quantum mechanics

2017 ◽  
Vol 32 (12) ◽  
pp. 1750073 ◽  
Author(s):  
D. Bazeia ◽  
F. S. Bemfica
Keyword(s):  
Field Theory ◽  
Quantum Mechanics ◽  
Scalar Field ◽  
Field Model ◽  
Supersymmetric Quantum Mechanics ◽  
Field Theories ◽  
Quantum Mechanical ◽  
Scalar Field Theory ◽  
Scalar Field Model ◽  
The Subject

In this work, we report a new result that appears when one investigates the route that starts from a scalar field theory and ends on a supersymmetric quantum mechanics. The subject has been studied before in several distinct ways and here, we unveil an interesting novelty, showing that the same scalar field model may describe distinct quantum mechanical problems.

scholarly journals Anisotropic constant-roll inflation for the Dirac–Born–Infeld model

2021 ◽  
Vol 81 (9) ◽  
Author(s):  
Duy H. Nguyen ◽  
Tuyen M. Pham ◽  
Tuan Q. Do
Keyword(s):  
Scalar Field ◽  
Electromagnetic Fields ◽  
Canonical Extension ◽  
Numerical Calculations ◽  
Anisotropic Constant ◽  
Inflationary Phase ◽  
Canonical Scalar Field

AbstractIn this paper, we study a non-canonical extension of a supergravity-motivated model acting as a vivid counterexample to the cosmic no-hair conjecture due to its unusual coupling between scalar and electromagnetic fields. In particular, a canonical scalar field is replaced by the string-inspired Dirac–Born–Infeld one in this extension. As a result, exact anisotropic inflationary solutions for this Dirac–Born–Infeld model are figured out under a constant-roll condition. Furthermore, numerical calculations are performed to verify that these anisotropic constant-roll solutions are indeed attractive during their inflationary phase.

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