TY - JOUR
T1 - Squeezing of Quantum Noise of Motion in a Micromechanical Resonator
AU - Pirkkalainen, J. M.
AU - Damskägg, E.
AU - Brandt, M.
AU - Massel, F.
AU - Sillanpää, M. A.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/12/7
Y1 - 2015/12/7
N2 - A pair of conjugate observables, such as the quadrature amplitudes of harmonic motion, have fundamental fluctuations that 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 1.1±0.4 dB below the standard quantum limit, thus achieving a long-standing goal of obtaining motional squeezing in a macroscopic object.
AB - A pair of conjugate observables, such as the quadrature amplitudes of harmonic motion, have fundamental fluctuations that 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 1.1±0.4 dB below the standard quantum limit, thus achieving a long-standing goal of obtaining motional squeezing in a macroscopic object.
UR - http://www.scopus.com/inward/record.url?scp=84949921518&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.115.243601
DO - 10.1103/PhysRevLett.115.243601
M3 - Article
AN - SCOPUS:84949921518
SN - 0031-9007
VL - 115
JO - Physical Review Letters
JF - Physical Review Letters
IS - 24
M1 - 243601
ER -