# Covariant and locally Lorentz-invariant varying speed of light theories

@article{Magueijo2000CovariantAL, title={Covariant and locally Lorentz-invariant varying speed of light theories}, author={Jo{\~a}o Magueijo}, journal={Physical Review D}, year={2000}, volume={62}, pages={103521} }

We propose definitions for covariance and local Lorentz invariance applicable when the speed of light $c$ is allowed to vary. They have the merit of retaining only those aspects of the usual definitions which are invariant under unit transformations, and which can therefore legitimately represent the outcome of an experiment. We then discuss some possibilities for invariant actions governing the dynamics of such theories. We consider first the classical action for matter fields and the effects…

## 107 Citations

### New varying speed of light theories

- Physics
- 2003

We review recent work on the possibility of a varying speed of light (VSL). We start by discussing the physical meaning of a varying-c, dispelling the myth that the constancy of c is a matter of…

### The minimally extended Varying Speed of Light (meVSL)

- Physics
- 2020

Even though there have been various models of the time-varying speed of light (VSL), they remain out of the mainstream because of their possible violation of physics laws built into fundamental…

### The Extensive special relativity and comment on local Lorentz transformation in varying speed of light theory

- Physics
- 2007

It is proved that local Lorentz transformations for different systems cannot derive varying speed of light. Based on the special relativity principle, an invariant speed is necessarily obtained.…

### Unifying relativity and classical dynamics

- Physics
- 2018

Relativity and classical dynamics, as defined so far, form distinct parts of classical physics and are formulated based on independent principles. We propose that the formalism of classical dynamics…

### Stars and black holes in varying speed of light theories

- Physics
- 2001

We investigate spherically symmetric solutions to a recently proposed covariant and locally Lorentz-invariant varying speed of light theory. We find the metrics and variations in $c$ associated with…

### Speed of light dependency on fabric density

- Physics
- 2013

The invariance of the in-vacuo speed of light is a premise of general relativity and all the cosmological models built thereon. There is also good empirical reason to believe it constant in the…

### A fully relative theory of gravitation

- Physics
- 2013

A fully relative geometric theory of gravitation is proposed which retains Einstein’s formulation of a gravitational field as a distortion of space-time by matter. The distortion is judiciously…

### Lorentz Transformation and General Covariance Principle

- Physics
- 2008

I tell about different mathematical tool that is important in general relativity. The text of the book includes definition of geometrical object, concept of reference frame, geometry of…

### Cosmological Solutions of Tensor–Vector Theories of Gravity by Varying the Space-Time–Matter Coupling Constant

- Physics
- 2013

We consider tensor–vector theories by varying the space-time–matter coupling constant (varying Einstein velocity) in a spatially flat FRW universe. We examine the dynamics of this model by dynamical…

## References

SHOWING 1-6 OF 6 REFERENCES

### The Large Scale Structure of Space-Time

- Physics
- 1973

The theory of the causal structure of a general space-time is developed, and is used to study black holes and to prove a number of theorems establishing the inevitability of singualarities under certain conditions.

### Quantum field theory

- Physics
- 1956

This book is a modern pedagogic introduction to the ideas and techniques of quantum field theory. After a brief overview of particle physics and a survey of relativistic wave equations and Lagrangian…

### The Anthropic Cosmological Principle

- Physics
- 1986

Is there any connection between the vastness of the universes of stars and galaxies and the existence of life on a small planet out in the suburbs of the Milky Way? This book shows that there is. In…

### The Theory of Space, Time and Gravitation

- Computer Science
- 1961

In a key input circuit, the key input signal is serialized and applied directly and through a circulating register working with a certain delay time to one gate for transmitting the direct key input…

### Stars and black holes in covariant and locally Lorentz-invariant varying speed of light theories

### Astrophys

- J. Lett. 532 L87-90
- 2000