Tachyonic field interacting with scalar (phantom) field
نویسندگان
چکیده
منابع مشابه
Tachyonic field interacting with Scalar (Phantom) Field
In this letter, we have considered the universe is filled with the mixture of tachyonic field and scalar or phantom field. If the tachyonic field interacts with scalar or phantom field, the interaction term decays with time and the energy for scalar field is transferred to tachyonic field or the energy for phantom field is transferred to tachyonic field. The tachyonic field and scalar field pot...
متن کاملRenormalizable, Scalar Tachyonic Quantum Field Theory with Chronology Protection
We use microlocal arguments to suggest that Lorentz symmetry breaking must occur in a reasonably behaved tachyonic quantum field theory that permits renormalizability. In view of this, we present a scalar tachyonic quantum field model with manifestly broken Lorentz symmetry and without exponentially growing/decaying modes. A notion of causality, in which anti-telephones are excluded, and which ...
متن کاملThe gravitating perfect fluid-scalar field equations: quintessence and tachyonic
The system consisting of a self gravitating perfect fluid and scalar field is considered in detail. The scalar fields considered are the quintessence and “tachyonic” forms which have important application in cosmology. Mathematical properties of the general system of equations are studied including the algebraic and differential identities as well as the eigenvalue structure. The Cauchy problem...
متن کاملPhantom Cosmology with Non-minimally Coupled Real Scalar Field
We find that the expansion of the universe is accelerating by analyzing the recent observation data of type Ia supernova(SN-Ia) .It indicates that the equation of state of the dark energy might be smaller than -1,which leads to the introduction of phantom models featured by its negative kinetic energy to account for the regime of equation of state parameter w < −1.In this paper the possibility ...
متن کاملPhantom Cosmology with a Nonlinear Born - Infeld type Scalar Field
Recent progress in theoretical physics suggests that the dark energy in the universe result from the Born-Infeld (B-I) type scalar field of string theory. The universe of B-I type scalar field with potential can undergo a phase of accelerated expansion. The corresponding equation of state parameter lies in the range of −1 < w < − 1 3. The equation of state parameter of B-I type scalar field wit...
متن کاملذخیره 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: Brazilian Journal of Physics
سال: 2009
ISSN: 0103-9733
DOI: 10.1590/s0103-97332009000100015