Squeezing of Quantum Noise of Motion in a Micromechanical Resonator
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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1-15
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PHYSICAL REVIEW LETTERS, Volume 115, issue 24
Abstract
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.Description
VK: Low Temperature Laboratory
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Pirkkalainen, J-M, Damskägg, E, Brandt, M, Massel, F & Sillanpää, M 2015, ' Squeezing of Quantum Noise of Motion in a Micromechanical Resonator ', Physical Review Letters, vol. 115, no. 24, 243601, pp. 1-15 . https://doi.org/10.1103/PhysRevLett.115.243601