A correlated electromechanical system. (16th March 2017)

• Record Type: Journal Article
• Authors: Mahboob, I; Villiers, M; Nishiguchi, K; Hatanaka, D; Fujiwara, A; Yamaguchi, H
• Is Part Of: New journal of physics. Volume 19:Number 3(2017:Mar.)
• Publication Date: 2017-03-16
• Subjects: NEMS/MEMS -- parametric down-conversion -- two-mode squeezing -- self-oscillations -- optomechanics; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1367-2630/aa62c6
• Languages: English
• ISSNs: 1367-2630

Abstract

Abstract: A correlation with phonons sustained by a pair of electromechanical resonators that differ both in size and frequency is demonstrated. In spite of the electromechanical resonators being spatially distinct, they can still be strongly dynamically coupled via a classical analogue of the beam splitter interaction with a cooperativity exceeding five, and parametric down-conversion which results in both resonators self-oscillating. This latter regime yields a classical variant of a two-mode squeezed state which is identified as perfectly correlated phase-locked vibrations between the two resonators. The creation of a correlation between two separate mechanical resonators suggests that extending this interaction to vacuum phonon states could enable a macroscopic two-mode squeezed state to be generated. Conversely, the ability to resolve the correlated state via the self-oscillations could be harnessed to build a new class of detector where an external stimulus neutralises the phase-locked vibrations.