167 citations · 281 across the 10 of their papers we have counts for
10 papers
Non-perturbative Quantization of Phantom and Ghost Theories: Relating Definite and Indefinite Representations
André van Tonder, Miquel Dorca
We investigate the non-perturbative quantization of phantom and ghost degrees of freedom by relating their representations in definite and indefinite inner product spaces. For a la…
Quantum Computation, Categorical Semantics and Linear Logic
André van Tonder, Miquel Dorca
This preprint has been withdrawn.
Cosmological Perturbations in Brane Worlds: Brane Bending and Anisotropic Stresses
M. Dorca, C. van de Bruck
Using a metric-based formalism to treat cosmological perturbations, we discuss the connection between anisotropic stress on the brane and brane bending. First we discuss gauge-tran…
On Cosmological Perturbations on a Brane in an Anti-de Sitter Bulk
C. van de Bruck, M. Dorca
In this paper, we consider cosmological perturbations on a brane universe embedded in an Anti-de Sitter bulk. We use a novel gauge, in which the full five-dimensional problem is in…
Cosmological Perturbations in Brane-World Theories: Formalism
C. van de Bruck, M. Dorca, R. H. Brandenberger +1
We develop a gauge-invariant formalism to describe metric perturbations in five-dimensional brane-world theories. In particular, this formalism applies to models originating from h…
Vacuum polarization in the Szekeres Class of colliding plane wave space-times
Miquel Dorca
We study the quantization of a scalar field on a classical background given by the Szekeres Class of solutions, which represent the collision of two gravitational plane waves with…