MIR status report: an experiment for the measurement of the dynamical Casimir effect

Abstract

Abstract.In this paper the status of the experiment MIR is reported. This experiment aims at measuring for the first time the Dynamical Casimir Effect by using an effective motion of a wall of a superconducting microwave resonant cavity. Effective motion is produced by periodic illumination of a semiconductor slab by means of a ultra-high-frequency amplitude modulated laser.

Mechanical backreaction effect of the dynamical Casimir emission

“…The solution then provides the amplitude of the mirror and field oscillations through Eqs. (36) and (37). Because of the nonlinear nature of the problem, multiple (up to three) solutions could exist for these equations, depending on the values of the strength and frequency of the drive.…”

Perturbative approach to dynamical Casimir effect in an interface of dielectric mediums

“…Motivated by experiments in which moving boundaries are simulated by time dependent properties of static systems including, changing the effective inductance of the SQUID by a time-dependent magnetic flux [20,21] or MIR experiment [22,23] and also [24], [24], [26], [27], we discuss here a model to change the dielectric function of a slab dielectric with thickness δq which is placed at the interface of semi infinite absorbing dielectrics and its dielectric function oscillates between ε 1 (ω) and ε 2 (ω) with the frequencies ω 0 . This consumption equals to the oscillation of boundary with the mechanical frequency ω 0 .…”

Towards particle creation in a microwave cylindrical cavity

“…A microscopic model would be a more realistic way to discuss the coupling of DCE photons to the background SCD [15][16][17]: A laser periodically irradiates a semiconductor diaphragm (SCD) inside a superconducting cavity. In our simulations we assume a cylindrical cavity with dimensions L z = 100 mm, R = 25 mm, and we also assume that the SCD can be placed at various locations d within the cavity: η = d/L z .…”

“…[14]). An experiment in progress [15][16][17] (see Fig. 1 for the general idea) uses a plasma mirror obtained by irradiating a semiconductor sheet with a pulsed laser.…”

“…1 Previously [22] (for related work, see also [23]), we considered the fundamental transverse magnetic (TM; TM 111 ) and second fundamental transverse electric (TE; TE 111 ) mode for a semiconductor diaphragm (SCD) irradiated by a pulsed laser in a rectangular cavity. However, there are various reasons for considering a cylindrical cavity: the tuning of the standing-wave frequencies depends only on the radius R and length L z (rather than L x ,L y ,L z ); it is easier to irradiate the * naylor@phys.sci.osaka-u.ac.jp 1 An experiment has already been built at Padau University [15][16][17] using an SCD fixed to the wall of a rectangular cavity. SCD uniformly; and it is easier to construct a higher finesse cavity.…”