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42 papers · 1 filter
Nonlocal two-dimensional Yang-Mills- and generalized Yang-Mills-theories
Khaled Saaidi, Mohammad Khorrami
A generalization of the two-dimensional Yang-Mills and generalized Yang-Mills theory is introduced in which the building B-F theory is nonlocal in the auxiliary field. The classica…
Chaotic Inflation with Variable Space Dimensions
Forough Nasseri, Sohrab Rahvar
Assuming the space dimension is not constant but decreases during the expansion of the Universe, we study chaotic inflation with the potential . We write down field equa…
Exact Solutions for Cosmological Models with a Scalar Field
Hossein Motavali, Mahdi Golshani
We consider the existence of a Noether symmetry in the scalar-tensor theory of gravity in flat Friedman Robertson Walker (FRW) cosmology. The forms of coupling function and…
Massive Schwinger model and its confining aspects on curved space-time
M. Alimohammadi, H. Mohseni Sadjadi
Using a covariant method to regularize the composite operators, we obtain the bosonized action of the massive Schwinger model on a classical curved background. Using the solution o…
Transformation of the Dirac-Born-Infeld action under the Seiberg-Witten map
Mohammad R. Garousi
We explicitly evaluate the disk S-matrix elements of one closed string and an arbitrary number of open string states in the presence of a large background B-flux. From this calcula…
Conformal Invariance and Wave-Particle Duality
Hossein Motavali, Hadi Salehi, Mehdi Golshani
We present a conformally invariant generalized form of the free particle action by connecting the wave and particle aspects through gravity. Conformal invariance breaking is introd…