2 edition of **Generalised Brans-Dicke cosmology** found in the catalog.

- 281 Want to read
- 25 Currently reading

Published
**2002** by University of Portsmouth in Portsmouth .

Written in English

**Edition Notes**

Thesis (Ph.D.) - University of Portsmouth, 2002.

Statement | Damien James Holden. |

ID Numbers | |
---|---|

Open Library | OL20164019M |

You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them.,, Free ebooks since 5 †Possible solution to the Mass hierarchy problem in particle physics if we live on the negative tension brane [RS1: 2-brane model].?rc is arbitrary) Existence of Radion mode Brans-Dicke type gravity on the branes unless 9stabilization mechanism. BD.

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We study the Generalized Brans-Dicke cosmology in the presence of matter and dark energy. Of particular interest for a constant Brans-Dicke parameter, the de Sitter space has also been investigated. arXivv2 [gr-qc] 27 Feb Perfect ﬂuid solutions of Brans-Dicke and f(R) cosmology Dilek K. C¸iftcia,b∗and Valerio Faraonib† a Department of Physics, Namık Kemal University, Tekirdag, Turkey bDepartment of Physics & Astronomy and STARResearch Cluster Bishop’s University, College Street, Sherbrooke, Qu´ebec, Canada J1M 1Z7.

We study the Generalized Brans-Dicke cosmology in the presence of matter and dark energy. Of particular interest for a constant Brans-Dicke parameter, the de Sitter space has also been.

We study the Generalized Brans-Dicke cosmology in the presence of matter and Generalised Brans-Dicke cosmology book energy. Of particular interest for a constant Brans-Dicke parameter, the de Sitter space has also been investigated.

This is a preview of subscription content, log in to check by: COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

Introduction, Genealogy. The term "Brans-Dicke," apparently first introduced by Dicke in his paper on transformation of units (Dicke ), is widely used to describe a modification of Einstein's original formulation of General Relativity to bring it into conformity with some form of Mach's standard Einstein theory the space-time metric tensor, or more precisely geometry, is.

We discuss the implications of the Brans-Dicke scalar-tensor theory for cosmology with particular emphasis on the primordial element abundances that would obtain.

Two general classes of models are found. Models of one class expand through the nuclear burning stage slightly more rapidly than the general relativistic case: models of the other class may expand at any rate by: Modified Brans Dicke cosmology with matter-scalar field interaction To cite this article: Georgios Kofinas et al Class.

Quantum Grav. 33 View the article online for updates and enhancements. Related content f(T) teleparallel gravity and cosmology Yi-Fu Cai, Salvatore Capozziello, Mariafelicia De Laurentis et al.-fT gravity and cosmologyCited by: Finally, we discuss the pertaining cosmology.

Brans–Dicke brane model in 5 dimensions. In this Letter we restrict ourselves to one extra space-like dimension with a scalar field non-minimally coupled to gravity in 5 dimensions.

We analyze the physics in the Jordan frame where the interpretation of the results is straightforward, as we Cited by: Som and Berman [ 3 ] showed that under this equation of state, all the conformally flat spacetimes render a constant expansion rate in Einstein's general relativity, but the literature is silent on the cases where a constant expansion rate is attained by the Brans-Dicke equations for by: Exact Solutions of Brans-Dicke Cosmology and the Cosmic Coincidence Problem S.

Carneiro1;2 and A. Montenegro Jr.1 1Instituto de F´ısica, Universidade Federal da Bahia,Salvador, BA, Brazil 2International Centre for Theoretical Physics, Trieste, Italy (Received on 14 October, ). Many researchers have discussed the various aspects of Brans-Dicke cosmology in their research work as cited in their corresponding papers [].

In recent research findings the discovery of the accelerated expansion of the universe provides a very good platform for. FRW Cosmology From Five Dimensional Vacuum Brans-Dicke Theory Item Preview remove-circle Share or Embed This Item. EMBED. EMBED (for hosted blogs and item tags) Want more.

Advanced embedding details, examples, and help. No_Favorite. Other articles where Brans–Dicke theory is discussed: Rainer Weiss: from the cosmos in the Brans-Dicke theory of gravitation. However, the experimental measurements were dominated by vibrations from the Alaska earthquake of Cosmology (from the Greek κόσμος, kosmos "world" and -λογία, -logia "study of") is a branch of astronomy concerned with the studies of the origin and evolution of the universe, from the Big Bang to today and on into the is the scientific study of the origin, evolution, and eventual fate of the universe.

Physical cosmology is the scientific study of the universe's origin. Creation of general relativity Early investigations.

As Einstein later said, the reason for the development of general relativity was the preference of inertial motion within special relativity, while a theory which from the outset prefers no particular state of motion appeared more satisfactory to him.

So, while still working at the patent office inEinstein had what he would call his. p-Brane cosmology and phases of Brans-Dicke theory with matter Chanyong Park and Sang-Jin Siny Department of Physics, Hanyang University Seoul, Korea Abstract We study the e ect of the solitonic degrees of freedom in string cosmology following the line of Rama.

The gas of solitonic p-brane is treated as a perfect ﬂuid in a Brans-Dicke type. Gravity (from Latin gravitas, meaning 'weight'), or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light —are brought toward (or gravitate toward) one another.

On Earth, gravity gives weight to physical objects, and the Moon's gravity causes the ocean gravitational attraction of the original gaseous matter.

In the context of generalized Brans-Dicke cosmology we use the Killing tensors of the minisuperspace in order to determine the unspecified potential of a scalar-tensor gravity theory. Specifically, based on the existence of contact symmetries of the field equations, we find four types of potentials which provide exactly integrable dynamical Cited by: with a modified Brans-Dicke Lagrangian from cosmology and elementary particle physics.

Besides, Azad and Islam [9] also studied cosmological constant in the Bianchi type-1 modified Bran’s-Dicke cosmology. After that, Pradhan [10] studied FRW universe with variable G and Λ terms. A new class of exact solutions of Einstein’s field.

Let me work in the large-warped Randall-Sundrum D-brane scenario and consider how an orbifolding leads to a non-singular cosmic bounce on the brane thus alleviating the rip of the big-bang singularity. The Randall-Sundrum 5-D braneworld action is: the 5-D Planck mass, and the cosmological constant in the bulk, yielding the metric on the brane.

On the other hand, the late-time cosmic acceleration may be due to modifications of general relativity. In this work, we explore a generalised modified gravity theory, namely ƒ(R,Φ, X) gravity, where R is the Ricci scalar, R is a scalar field and X is a kinetic term. This theory contains a wide range of dark energy and modified gravity by: Confronting these results with previous ones derived for non-null hypersurfaces in the Einstein frame, as well as their generalisation for the so-called Generalised Brans-Dicke theory (given by the Lagrangian L G B D = 1 2 F ϕ R + B ϕ X − 2 G ϕ ϕ X, where F, B, G are arbitrary smooth functions of ϕ and X are in progress and will be Cited by: 1.

We consider a General Relativistic generalized RWs metric, and find a field of Universal rotational global centripetal acceleration, numerically coincident with the value of the Pioneers Anomalous one.

Related subjects are also treated. The rotation defined here is different from older frameworks, because we propose a Gaussian metric, whose tri-space rotates relative to the time orthogonal Cited by: 4. The prototype Brans-Dicke model Conformal transformation Cosmology with; 5.

Models of an accelerating universe Quantum effects-- Appendices-- References-- Index. (source: Nielsen Book Data) The scalar-tensor theory of gravitation is one of the most popular alternatives to.

General Relativity and Quantum Cosmology Authors and titles for Sep [ total of entries: ] [ showing entries per page: fewer | more] arXiv [pdf, other]. Dimensionless cosmology by Ali NarimaniMechanical Engineering, Isfahan University of Technology,Physics, Isfahan University of Technology, A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF Master of Science in THE FACULTY OF GRADUATE STUDIES (Astronomy) The University Of British Columbia (Vancouver).

cosmology weyl lorentz symmetries conformal physics general relativity perturbations quintessence holographic Post a Review You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if.

@article{osti_, title = {Imperfect dark energy from kinetic gravity braiding}, author = {Deffayet, Cédric and Pujolàs, Oriol and Sawicki, Ignacy and Vikman, Alexander}, abstractNote = {We introduce a large class of scalar-tensor models with interactions containing the second derivatives of the scalar field but not leading to additional degrees of by: Evolution of tensor modes • The 4D tensor modes satisfy the wave equation • For k ≪aH, h 4d is constant, whereas, inside the Hubble radius, h 4d behaves like a • Taking into account only the change of homogeneous cosmology,File Size: 6MB.

@article{osti_, title = {Finding Horndeski theories with Einstein gravity limits}, author = {McManus, Ryan and Lombriser, Lucas and Peñarrubia, Jorge}, abstractNote = {The Horndeski action is the most general scalar-tensor theory with at most second-order derivatives in the equations of motion, thus evading Ostrogradsky instabilities and making it of interest when modifying gravity at.

This banner text can have markup. web; books; video; audio; software; images; Toggle navigation. In these theories, which include for instance Brans-Dicke gravity, the metric tensor is non-minimally coupled with one or more scalar fields.

In the case of a single scalar field (which can be generalized to multi-scalar-tensor theories [ ]), the action can be written asCited by: An Introduction to General Relativity and Cosmology Jerzy Plebanski, Andrzej Krasinski. General relativity is a cornerstone of modern physics, and is of major importance in its applications to cosmology.

Plebanski and Krasinski are experts in the field and provide a thorough introduction to general relativity, guiding the reader through. five-dimensional brans-dicke cosmology with constant deceleration parameter ; real inversion formula for a hankel type integral transformation ; range of diameters of a bipartite graph and its generalized 2-partite complement ; on singularity of spherically symmetric space times.

String and brane cosmology In string theory the action may be defined as S ≝ ∫ 2 1 d τ τ τ ∫ π σ 0 d L (⋅ X, X’) where L is the Lagrangian, ⋅ X = ∂τ ∂X, X’ = ∂σ ∂X, for an open string the spatial ends correspond to σ= 0 and σ=π, for a closed string X (σ) = X (σ + π).

Detailed description of the subjects treated in this paper may be found in the two books recently published by Berman in [1,2]). Additional paper references are Berman in [3]; in [4] and [5]; in [6]) and with co-authors Costa, (Berman and Costa in [7]) and with Gomide (Berman and Gomide in [8] and in form as a Chapter in an edited book [9], by Berman and Gomide.

At timeinstantenuity of the Quantum Big Bang, n=n ps =λ ps /R max =x ~ 0 Then G BigBang =G o X n ps =G o (to 50 decimal places distinguishing the timeinstanton from the Nulltime as the Planck-Time transform). G o represents the quantum gravitational constant applicable for any Black Hole cosmology and can be used to correlate the MOND gravitation with the Newton.

Gravitation, or gravity, is a natural phenomenon by which physical bodies attract with a force proportional to their ation is most familiar as the agent that gives weight to objects with mass and causes them to fall to the ground when dropped.

Gravitation causes dispersed matter to coalesce, and coalesced matter to remain intact, thus accounting for the existence of the Earth, the. Abstract. The book edition of the Universe Special Issue “Compact Stars in the QCD Phase Diagram” is devoted to the overarching aspects shared between heavy-ion collisions and compact star astrophysics in investigating the hadron-to-quark matter phase transition in the equation of state of strongly interacting matter in different regions of the phase diagram of QCD.

We introduce three new functionalities into hi_class: (1) Support for models based on covariant Lagrangians, including a constraint-preserving integration scheme for the background evolution and a series of worked-out examples: Galileon, nKGB, quintessence (monomial, tracker) and Brans-Dicke.

(2) Consistent initial conditions for the scalar Cited by: 1.Dedicated to Rafael Sorkin on the occasion of his 60th birthday Subj-class: General Relativity and Quantum Cosmology; Statistical Mechanics \\ \\ Paper: gr-qc/ From: Claus Lammerzahl >laemmerzahl(at) Date: Wed, 1 Feb GMT (12kb) Title: Solar system effects in Schwarzschild--de Sitter spacetime Authors.Modern Cosmology CUP [>gr-cosm; lay readers].

"Consistent neutrino masses from cosmology and solar physics" Nat () [>dark-matter-types]. "Precision estimate of cosmological and particle parameters in the decaying-dark-matter hypothesis" PRL 65 .