A Classical Field Theory of Gravity and Electromagnetism
نویسندگان
چکیده
منابع مشابه
Field line motion in classical electromagnetism
We consider the concept of field line motion in classical electromagnetism for crossed electromagnetic fields and suggest definitions for this motion that are physically meaningful but not unique. Our choice has the attractive feature that the local motion of the field lines is in the direction of the Poynting vector. The animation of the field line motion using our approach reinforces Faraday’...
متن کاملOn the Classical Coupling between Gravity and Electromagnetism
Coupling between electromagnetism and gravity, manifested as the distorted Coulomb field of a charge distribution in a gravitational field, has never been observed. A physical system consisting of an electron in a charged shell provides a coupling that is orders of magnitude stronger than for any previously-considered system. A shell voltage of one megavolt is required to establish a gravitatio...
متن کاملField Energy in Classical Gravity
The problem of negative total energy of certain mass systems in classical gravity and its connection with the existence of space-time singularities is brie y summarized. Some attempts to solve this problem are discussed, pointing out especially the possibility that rest masses of a gravitating systems could depend on the strength of the gravitational eld. The results are confronted with some ex...
متن کاملCoframe geometry, gravity and electromagnetism
The extensions of GR for description of fermions on a curved space, for supergravity, and for the loop quantum gravity ordinary use a set of 16 independent variables instead of 10 components of metric. These variables can be assembled in a coframe field, i.e., a set of four linearly independent 1-forms. In this presentation we review a geometrical structure based on the coframe field. We constr...
متن کاملClassical Teichmüller Theory and (2+1) gravity
We consider classical Teichmüller theory and the geodesic flow on the cotangent bundle of the Teichmüller space. We show that the corresponding orbits provide a canonical description of certain (2+1) gravity systems in which a set of point-like particles evolve in universes with topology Σg × R I where Σg is a Riemann surface of genus g > 1 . We construct an explicit York’s slicing presentation...
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: Journal of Modern Physics
سال: 2014
ISSN: 2153-1196,2153-120X
DOI: 10.4236/jmp.2014.510096