A novel experimental approach for the detection of the dynamical Casimir effectC. Braggio1, G. Bressi2, G. Carugno3, C. Del Noce3, G. Galeazzi4, A. Lombardi4, A. Palmieri4, G. Ruoso4 and D. Zanello5
1 Dipartimento di Fisica, Università di Ferrara and INFN Via del Paradiso 12, 44100 Ferrara, Italy
2 INFN, Sezione di Pavia - Via Bassi 6, 27100 Pavia, Italy
3 INFN, Sezione di Padova - Via Marzolo 8, 35131 Padova, Italy
4 INFN, LNL - Viale dell'Università 2, 35020 Legnaro, Italy
5 INFN, Sezione di Roma - P.le A. Moro 2, 00185 Roma, Italy
received 21 January 2005; accepted in final form 27 April 2005
published online 18 May 2005
In order to observe the Casimir radiation we propose a new experimental scheme with no mechanically moving mirror. In fact we estimate that the power required for a sustained mechanical vibration would be beyond present experimental possibilities. Our apparatus consists of a superconducting electromagnetic resonant cavity with a wall covered by a semiconductor layer whose reflectivity is driven by a laser at gigahertz frequencies. The semiconductor thus acts as a moving mirror. Preliminary laboratory tests showed that a semiconductor can indeed reflect microwaves as efficiently as a conductor. In this paper we present the complete scheme that we intend to set up for the detection of the Casimir radiation.
12.20.Fv - Experimental tests.
42.50.Dv - Nonclassical states of the electromagnetic field, including entangled photon states; quantum state engineering and measurements.
13.40.-f - Electromagnetic processes and properties.
© EDP Sciences 2005