128 citations · 423 across the 9 of their papers we have counts for
9 papers
Group theoretical approach to quantum fields in de Sitter space II. The complementary and discrete series
E. Joung, J. Mourad, R. Parentani
We use an algebraic approach based on representations of de Sitter group to construct covariant quantum fields in arbitrary dimensions. We study the complementary and the discrete…
Metastable Vacua in Brane Worlds
E. Dudas, J. Mourad, F. Nitti
We analyze vacuum decay in brane world setups, where a free scalar field in five dimensions has a localized potential admitting metastable vacua. We study in particular the bounce…
QFT with Twisted Poincaré Invariance and the Moyal Product
E. Joung, J. Mourad
We study the consequences of twisting the Poincare invariance in a quantum field theory. First, we construct a Fock space compatible with the twisting and the corresponding creatio…
Current Exchanges and Unconstrained Higher Spins
D. Francia, J. Mourad, A. Sagnotti
The (Fang-)Fronsdal formulation for free fully symmetric (spinor-) tensors rests on (gamma-)trace constraints on gauge fields and parameters. When these are relaxed, glimpses of th…
The continuous spin limit of higher spin field equations
X. Bekaert, J. Mourad
We show that the Wigner equations describing the continuous spin representations can be obtained as a limit of massive higher-spin field equations. The limit involves a suitable sc…
D-branes in String theory Melvin backgrounds
E. Dudas, J. Mourad
We determine the consistent D-brane configurations in type II nonsupersymmetric Melvin Background. The D-branes are analysed from three complementary points of view: the effective…