Projekteja vuodessa
Abstrakti
Quantum backaction disturbs the measurement of the position of a mechanical oscillator by introducing additional fluctuations. In a quantum backaction measurement technique, the backaction can be evaded, although at the cost of losing part of the information. In this work, we carry out such a quantum backaction measurement using a large 0.5 mm diameter silicon nitride membrane oscillator with 707 kHz frequency, via a microwave cavity readout. The measurement shows that quantum backaction noise can be evaded in the quadrature measurement of the motion of a large object.
Alkuperäiskieli | Englanti |
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Artikkeli | 083043 |
Sivut | 1-15 |
Sivumäärä | 15 |
Julkaisu | New Journal of Physics |
Vuosikerta | 24 |
Numero | 8 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 1 elok. 2022 |
OKM-julkaisutyyppi | A1 Julkaistu artikkeli, soviteltu |
Sormenjälki
Sukella tutkimusaiheisiin 'Quantum backaction evading measurements of a silicon nitride membrane resonator'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.-
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24/09/2021 → 30/09/2026
Projekti: EU: ERC grants
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Laure Mercier de Lepinay Postdoc: Vacuum forces between superconductors probed with microwave optomechanics
01/09/2021 → 31/08/2024
Projekti: Academy of Finland: Other research funding
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