27 citations · 97 across the 12 of their papers we have counts for
3 papers · 1 filter
Quantum formalism on the plane: POVM-Toeplitz quantization, Naimark theorem and linear polarisation of the light
Roberto Beneduci, Emmanuel Frion, Jean-Pierre Gazeau +1
We investigate two aspects of the elementary example of POVMs on the Euclidean plane, namely their status as quantum observables and their role as quantizers in the integral quanti…
Black Hole Shadow Drift and Photon Ring Frequency Drift
Emmanuel Frion, Leonardo Giani, Tays Miranda
The apparent angular size of the shadow of a black hole in an expanding Universe is redshift-dependent. Since cosmological redshifts change with time - known as the redshift drift…
Impact of inhomogeneities on slowly rolling Quintessence: implications for the local variations of the fine-structure constant
Leonardo Giani, Emmanuel Frion, Oliver Fabio Piattella
We study how the evolution of a Dark Energy Quintessence fluid is modified by the presence of a matter inhomogeneity. To do so, we study linear perturbations of a flat FLRW backgro…