Entangling movable mirrors in a double cavity system

Michel Pinard (1) , Aurelien Dantan (1) , David Vitali (2) , Olivier Arcizet (1) , Tristan Briant (1) , Antoine Heidmann (1)

1 LKB (Jussieu) - Laboratoire Kastler Brossel
2 Dipartimento di Fisica [Camerino]

We propose a double-cavity set-up capable of generating a stationary entangled state of two movable mirrors at cryogenic temperatures. The scheme is based on the optimal transfer of squeezing of input optical fields to mechanical vibrational modes of the mirrors, realized by the radiation pressure of the intracavity light. We show that the presence of macroscopic entanglement can be demonstrated by an appropriate read out of the output light of the two cavities.

Domaines: Physique Quantique [quant-ph]

Michel Pinard, Aurelien Dantan, David Vitali, Olivier Arcizet, Tristan Briant, et al.. Entangling movable mirrors in a double cavity system. EPL - Europhysics Letters, 2005, 72, pp.747. ⟨hal-00007732v2⟩