SAA Alavi

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We present a new inflation model, known as noncommutative decrumpling inflation, in which space has noncommutative geometry with time variability of the number of spatial dimensions. Within the framework of noncommutative decrumpling inflation, we compute both the spectral index and its running. Our results show the effects of both time variability of the(More)
BACKGROUND Chronic obstructive pulmonary disease (COPD) is currently the fourth leading cause of death in the United States. As there is systemic as well as local inflammation in COPD patients and evaluating the stage of the disease is not possible by spirometery alone, we evaluated High-Sensitivity C-reactive Protein (HS-CRP) in a group of COPD patients as(More)
The horizons of Reissner-Nordstrom black holes up to the second order of perturbative calculations are obtained in noncommutative spaces. Since the noncommutativity parameter, if it is nonzero, should be very small compared to the length scales of the system, one can always treat the noncommutative effects as some perturbations of the commutative(More)
We study the cosmological implications of the space-space noncommuta-tive inflation and present formulae for the spectral index and its running. Our results show that deviations from the spectral index and its running depend on the space-space noncommutativity length scale. We conclude that in the slow-roll regime of a typical inflationary scenario,(More)
We obtain the event horizon of extremal Kerr black hole in non-commutative spaces. Recently, remotivated by string theory, noncommutative spaces (Moyal plane) have been studied extensively [1]. The noncommutative spaces can be realized by the coordinate operators satisfying wherê x are the coordinate operators and θ ij is the noncommutativity parameter and(More)
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