Form invariance transformations can be used for constructing phantom cosmologies starting with conventional cosmological models. In this work we reconsider the scalar field case and extend the discussion to fermionic fields, where the 'phantomization' process exhibits a new class of possible accelerated regimes. As an application we analyze the cosmological constant group for a fermionic seed fluid. © 2008 IOP Publishing Ltd.Fil: Chimento, Luis Pascual. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Devecchi, Fe...
In this paper we analyze the cosmological dynamics of phantom field in a variety of potentials unbou...
We find the group of symmetry transformations generated by interacting fluids in spatially flat Frie...
We investigate the phase space of a scalar field theory obtained by minisuperspace deformation. We c...
We illustrate how form-invariance transformations can be used for constructing phantom cosmologies f...
We present a general algorithm based on the concept of form-invariance which can be used for generat...
© 2018, Pleiades Publishing, Ltd. The article represents a research of the cosmological evolution of...
We illustrate how form-invariance transformations can be used for constructing phantom cosmologies f...
We study the general features of a dynamics of a phantom field in the cosmological context. In the c...
The phantom behavior of the Universe is discussed in an extended version of Gauss–Bonnet gravity. Fo...
We devise a method to obtain a phantom version of FRW k-essence cosmologies with homogeneous k field...
Phantom energy can be visualized as a scalar field with a (non-canonical) negative kinetic energy te...
We illustrate how a group of symmetry transformations, which preserve the form of the n-dimensional ...
We find that the expansion of the universe is accelerating by analyzing the recent observation data ...
We use the generalization of quantum theory for the case of non-Hermitian Hamiltonians with (C)PT sy...
© 2017, Pleiades Publishing, Ltd. We investigate the asymptotic behavior of a cosmological model bas...
In this paper we analyze the cosmological dynamics of phantom field in a variety of potentials unbou...
We find the group of symmetry transformations generated by interacting fluids in spatially flat Frie...
We investigate the phase space of a scalar field theory obtained by minisuperspace deformation. We c...
We illustrate how form-invariance transformations can be used for constructing phantom cosmologies f...
We present a general algorithm based on the concept of form-invariance which can be used for generat...
© 2018, Pleiades Publishing, Ltd. The article represents a research of the cosmological evolution of...
We illustrate how form-invariance transformations can be used for constructing phantom cosmologies f...
We study the general features of a dynamics of a phantom field in the cosmological context. In the c...
The phantom behavior of the Universe is discussed in an extended version of Gauss–Bonnet gravity. Fo...
We devise a method to obtain a phantom version of FRW k-essence cosmologies with homogeneous k field...
Phantom energy can be visualized as a scalar field with a (non-canonical) negative kinetic energy te...
We illustrate how a group of symmetry transformations, which preserve the form of the n-dimensional ...
We find that the expansion of the universe is accelerating by analyzing the recent observation data ...
We use the generalization of quantum theory for the case of non-Hermitian Hamiltonians with (C)PT sy...
© 2017, Pleiades Publishing, Ltd. We investigate the asymptotic behavior of a cosmological model bas...
In this paper we analyze the cosmological dynamics of phantom field in a variety of potentials unbou...
We find the group of symmetry transformations generated by interacting fluids in spatially flat Frie...
We investigate the phase space of a scalar field theory obtained by minisuperspace deformation. We c...