Thermally Induced Parametric Instability in a Back-Action Evading Measurement of a Micromechanical Quadrature near the Zero-Point Level

Autor:	A. J. Weinstein, Junho Suh, Matthew D. Shaw, Keith Schwab, H. G. LeDuc
Rok vydání:	2012
Předmět:	Physics Superconductivity business.industry Mechanical Engineering Zero-point energy Bioengineering General Chemistry Dissipation Condensed Matter Physics Resonator Optics Thermal General Materials Science Mechanical resonance Radio frequency business Microwave
Zdroj:	Nano Letters. 12:6260-6265
ISSN:	1530-6992 1530-6984
Popis:	We report the results of back-action evading experiments utilizing a tightly coupled electro-mechanical system formed by a radio frequency micromechanical resonator parametrically coupled to a NbTiN superconducting microwave resonator. Due to excess dissipation in the microwave resonator, we observe a parametric instability induced by a thermal shift of the mechanical resonance frequency. In light of these measurements, we discuss the constraints on microwave dissipation needed to perform BAE measurements far below the zero-point level.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dae840a90dbcd112c03c996a97f399df https://doi.org/10.1021/nl303353r Zobrazit plný text záznamu