10.6k citations
- Institute for Research in Fundamental SciencesIR151 papers
- Research Institute for Astronomy and Astrophysics of MaraghIR44 papers
- Shiraz UniversityIR40 papers
- Centre National de la Recherche ScientifiqueFR36 papers
- Sharif University of TechnologyIR34 papers
- University of TehranIR34 papers
- University of IsfahanIR28 papers
- University of GenevaCH19 papers
- University of QomIR18 papers
- K. N. Toosi University of TechnologyIR17 papers
- Observatoire de la Côte d’AzurFR17 papers
- Université Grenoble AlpesFR17 papers
7 papers · 1 filter
Conformal Invariance and Quantum Aspects of Matter
Hossein Motavali, Hadi Salehi, Mehdi Golshani
The vacuum sector of the Brans-Dicke theory is studied from the viewpoint of a non-conformally invariant gravitational model. We show that, this theory can be conformally symmetriz…
Gravitational waves and spinning test particles
M. Mohseni, H. R. Sepangi
The motion of a classical spinning test particle in the field of a weak plane gravitational wave is studied. It is found that the characteristic dimensions of the particle's orbit…
Wave packets and initial conditions in quantum cosmology
S. S. Gousheh, H. R. Sepangi
We discuss the construction of wave packets resulting from the solutions of a class of Wheeler-DeWitt equations in Robertson-Walker type cosmologies. We present an ansatz for the i…
Models of fragmentation with power law log-normal distributions
Z. Tavassoli, A. Esmaeilnia Shirvani
Two models of binary fragmentation are introduced in which a time dependent transition size produces two regions of fragment sizes above and below the transition size. In the model…
Conformal invariance and particle aspects in general relativity
H. Salehi, H. R. Sepangi, F. Darabi
We study the breakdown of conformal symmetry in a conformally invariant gravitational model. The symmetry breaking is introduced by defining a preferred conformal frame in terms of…
Scalar Tensor Theories and Hadamard State Condition
H. Salehi, Y. Bisabr, H. Ghafarnejad
The Hadamard state condition is used to analyze the local constraints on the two-point function of a quantum field conformally coupled to a background geometry. Using these constra…