INVESTIGADORES
KRAISELBURD Lucila
congresos y reuniones científicas
Título:
Beyond Bekenstein´s Theory
Autor/es:
L. KRAISELBURD; M. MILLER BERTOLAMI; P. SISTERNA; H. VUCETICH
Lugar:
Lisboa
Reunión:
Simposio; Symposium 1 of JENAM 2010; 2010
Institución organizadora:
European Astronomy Society
Resumen:
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There are several very different
motivations for studying the variation of fundamental constants. They
may provide a connection between cosmology and particle physics due
to the coincidence of large dimensionless numbers arising from the
combination of different physical constants. Bekenstein's variable
charge model is very attractive because it is based on very general
assumptions: covariance, gauge invariance, causality and
time-reversal invariance of electromagnetism. The generality of its
assumptions guarantee the applicability of the scheme to other gauge
interactions such as the strong forces. Besides, it introduces a
useful simplifying assumption; namely, that the gravitational sector
is unaffected by the scalar field introduced to vary the coupling
constant. That is why it is interesting to explore first this
simplified model, before a similar exploration of more general
theories.