2 papers
quant-ph2020
Unruh effect for detectors in superposition of accelerations
Luis C. Barbado, Esteban Castro-Ruiz, Luca Apadula +1
The Unruh effect is the phenomenon that accelerated observers detect particles even when inertial observers experience the vacuum state. In particular, uniformly accelerated observ…
quant-ph2018
Symmetries of the Dirac quantum walk and emergence of the de Sitter group
Luca Apadula, Alessandro Bisio, Giacomo Mauro D'Ariano +1
A quantum walk describes the discrete unitary evolution of a quantum particle on a discrete graph. Some quantum walks, referred to as the Weyl and Dirac quantum walks, provide a de…