Artículos de revistas
Swimming versus swinging effects in spacetime
Registro en:
Physical Review D. American Physical Soc, v. 73, n. 2, 2006.
1550-7998
WOS:000235010000060
10.1103/PhysRevD.73.024020
Autor
Gueron, E
Maia, CAS
Matsas, GEA
Institución
Resumen
Wisdom has recently unveiled a new relativistic effect, called "spacetime swimming", where quasirigid free bodies in curved spacetimes can "speed up", "slow down" or "deviate" their falls by performing local cyclic shape deformations. We show here that for fast enough cycles this effect dominates over a nonrelativistic related one, named here "space swinging", where the fall is altered through nonlocal cyclic deformations in Newtonian gravitational fields. We expect, therefore, to clarify the distinction between both effects leaving no room to controversy. Moreover, the leading contribution to the swimming effect predicted by Wisdom is enriched with a higher order term and the whole result is generalized to be applicable in cases where the tripod is in large redshift regions. 73 2