Performing Hamiltonian analysis of the massive gravity [9] in full phase space, we see that the theory is ghost free. We also see in a more clear way that this result is intrinsic of the interaction term and does not depend on the variables involved. Since no first class constraint emerges, the theory seems to lack gauge symmetry. We show that this is due to the presence of an auxiliary field, and the symmetry may be manifest in the Stückelberg formulation. We give the generating functional of gauge transformation in this model. * zahra.molaei@ph.iut.ac.ir † shirzad@ipm.ir
We consider the Schrödinger equation under an external magnetic field in two-dimensional noncommutative phase space with an explicit minimal length relation. The eigenfunctions are reported in terms of the Jacobi polynomials, and the explicit form of energy eigenvalues is reported.
In this work, we study Duffin-Kemmer-Petiau equation in the presence of coulomb and harmonic oscillator potentials in (1+3)-dimension for spin-one particles and we obtain energy eigenvalues and corresponding eigenfunctions.
We analyze the Hamiltonian structure of a general theory of bi-gravity where the interaction term is a scalar function of the form V (X n ) where X may be g −1 f or g −1 f . We give necessary conditions for the interaction term of such a theory to be ghost free. We give a precise constraint analysis of the bi-gravity theory of Hassan-Rosen and show that the additional constraint which omit the ghost is just one possibility at the bifurcation point. * zahra.molaei@ph.iut.ac.ir † shirzad@ipm.ir
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