Squeezing of quantum noise of motion in a micromechanical resonator
Mesoscale and Nanoscale Physics
2015-12-16 v2 Quantum Physics
Abstract
A pair of conjugate observables, such as the quadrature amplitudes of harmonic motion, have fundamental fluctuations which are bound by the Heisenberg uncertainty relation. However, in a squeezed quantum state, fluctuations of a quantity can be reduced below the standard quantum limit, at the cost of increased fluctuations of the conjugate variable. Here we prepare a nearly macroscopic moving body, realized as a micromechanical resonator, in a squeezed quantum state. We obtain squeezing of one quadrature amplitude dB below the standard quantum limit, thus achieving a long-standing goal of obtaining motional squeezing in a macroscopic object.
Keywords
Cite
@article{arxiv.1507.04209,
title = {Squeezing of quantum noise of motion in a micromechanical resonator},
author = {J. -M. Pirkkalainen and E. Damskägg and M. Brandt and F. Massel and M. A. Sillanpää},
journal= {arXiv preprint arXiv:1507.04209},
year = {2015}
}
Comments
Physical Review Letters (accepted for publication, 2015)