5 citations · 9 across the 2 of their papers we have counts for
6 papers
Gravitons in a Casimir box
Francesco Alessio, Glenn Barnich, Martin Bonte
The partition function of gravitons with Casimir-type boundary conditions is worked out. The simplest box that allows one to achieve full analytical control consists of a slab geom…
Weyl Charges in Asymptotically Locally AdS Spacetimes
Francesco Alessio, Glenn Barnich, Luca Ciambelli +2
We discuss an enhancement of the Brown-Henneaux boundary conditions in three-dimensional AdS General Relativity to encompass Weyl transformations of the boundary metric. The result…
Modular invariance in finite temperature Casimir effect
Francesco Alessio, Glenn Barnich
The temperature inversion symmetry of the partition function of the electromagnetic field in the set-up of the Casimir effect is extended to full modular transformations by turning…
Note on the symplectic structure of asymptotically flat gravity and BMS symmetries
Francesco Alessio, Michele Arzano
The Poisson brackets of the gravitational field at null infinity play a pivotal role in establishing the equivalence between the Ward identities involving BMS charges and the soft…
A fuzzy bipolar celestial sphere
Francesco Alessio, Michele Arzano
We introduce a non-commutative deformation of the algebra of bipolar spherical harmonics supporting the action of the full Lorentz algebra. Our construction is close in spirit to t…
From parabolic to loxodromic BMS transformations
Giampiero Esposito, Francesco Alessio
Half of the Bondi-Metzner-Sachs (BMS) transformations consist of orientation-preserving conformal homeomorphisms of the extended complex plane known as fractional linear (or Mobius…