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Superextendons with a modified measure
E. I. Guendelman
For superstrings, the consequences of replacing the measure of integration in the Polyakov's action by where is a density built out of degrees of free…
Strings and branes with a modified measure
E. I. Guendelman
In string theory, the consequences of replacing the measure of integration in the Polyakov's action by where is a density built out of degrees of free…
Scale Invariance, Inflation and the Present Vacuum Energy of the Universe
E. I. Guendelman
The possibility of mass in the context of scale-invariant, generally covariant theories, is discussed. Scale invariance is considered in the context of a gravitational theory where…
Is our vacuum stable?
E. I. Guendelman, J. Portnoy
The stability of our vacuum is analyzed and several aspects concerning this question are reviewed. 1) In the standard Glashow-Weinberg-Salam (GWS) model we review the instability t…