In Search of the Spacetime Torsion

نویسنده

  • J. G. PEREIRA
چکیده

Whether torsion plays or not a role in the description of the gravitational interaction is a problem that can only be solved by experiment. This is, however, a difficult task: since there are different possible interpretations for torsion, there is no a model–independent way to look for it. In these notes, two different possibilities will be reviewed, their consistency analyzed, and the corresponding experimental outputs briefly discussed.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

2 Vortex geometry of torsion loops in ( 1 + 1 ) dimensions

The irrotational vortex geometry carachter of torsion loops is displayed by showing that torsion loops and nonradial flow acoustic metrics are conformally equivalent in (1 + 1) dimensions while radial flow acoustic spacetime are conformally related in (2 + 1) dimensional spacetime. The analysis of 2-dimensional space allows us to express the fluid density in terms of the parameters of torsion l...

متن کامل

Non-Riemannian effective spacetime effects on Hawking radiation in superfluids

Riemannian effective spacetime description of Hawking radiation in He− A superfluids is extended to non-Riemannian effective spacetime. An example is given of non-Riemannian effective geometry of the rotational motion of the superfluid vacuum around the vortex where the effective spacetime Cartan torsion can be associated to the Hawking giving rise to a physical interpretation of effective tors...

متن کامل

A Solution to Symmetric Teleparallel Gravity

Teleparallel gravity models, in which the curvature and the nonmetricity of spacetime are both set zero, are widely studied in the literature. We work a different teleparallel theory, in which the curvature and the torsion of spacetime are both constrained to zero, but the nonmetricity is nonzero. After reformulating the general relativity in this spacetime we find a solution and investigate it...

متن کامل

Probing non-Riemannian spacetime geometry

The equations of motion for matter in non-Riemannian spacetimes are derived via a multipole method. It is found that only test bodies with microstructure couple to the non-Riemannian spacetime geometry. Consequently it is impossible to detect spacetime torsion with the satellite experiment Gravity Probe B, contrary to some recent claims in the literature.

متن کامل

Mass neutrino flavor evolution in spacetime with torsion

Dear Sir: Please, find enclosed two copies of the manuscript Mass Neutrino flavor evolution in Spacetime with torsion, which we would like to submit for publication in Il Nuovo Cimento B. I will be grateful if you would like to give a message when you receive them.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2008