2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/196457Aladin2 is an experiment devoted to the first measurement of variations of Casimir energy in a rigid body. The main short-term scientific motivation relies on the possibility of the first demonstration of a phase transition influenced by vacuum fluctuations while, in the long term and in the mainframe of the cosmological constant problem, it can be regarded as the first step towards a measurement of the weight of vacuum energy. In this paper, after a presentation of the guiding principle of the measurement, the experimental apparatus and sensitivity studies on final cavities will be presented.4 pages, Latex macros, 10th Conference on Frontier Detectors for Frontier Physics, Isola D'Elba, 21-27 May 2006Quantum Physicstext