159 citations · 2.1k across the 68 of their papers we have counts for
10 papers · 1 filter
Holography of Broken U(1) Symmetry
Ian Chaffey, Sylvain Fichet, Philip Tanedo
We examine the Abelian Higgs model in (d+1)-dimensional anti-de Sitter space with an ultraviolet brane. The gauge symmetry is broken by a bulk Higgs vacuum expectation value trigge…
Scalar-Mediated Quantum Forces Between Macroscopic Bodies and Interferometry
Philippe Brax, Sylvain Fichet
We study the quantum force between classical objects mediated by massive scalar fields bilinearly coupled to matter. The existence of such fields is motivated by dark matter, dark…
On Holography in General Background and the Boundary Effective Action from AdS to dS
Sylvain Fichet
We study quantum fields on an arbitrary, rigid background with boundary. We derive the action for a scalar in the holographic basis that separates the boundary and bulk degrees of…
Dressing in AdS and a Conformal Bethe-Salpeter Equation
Sylvain Fichet
We initiate the study of Dyson equations of perturbative QFT in AdS and their consequences for large-N CFT. We show that the dressed one-particle AdS propagator features wavefuncti…
Opacity from Loops in AdS
Alexandria Costantino, Sylvain Fichet
We investigate how quantum dynamics affects the propagation of a scalar field in Lorentzian AdS. We work in momentum space, in which the propagator admits two spectral representati…
Effective Field Theory in AdS: Continuum Regime, Soft Bombs, and IR Emergence
Alexandria Costantino, Sylvain Fichet, Philip Tanedo
We consider a scalar field in a slice of Lorentzian five-dimensional AdS at arbitrary energies. We show that the presence of bulk interactions separate the behavior of the theory i…