Spectral Evidence of Squeezing of a Weakly Damped Driven Nanomechanical Mode

Because of the broken time-translation symmetry, in periodically driven vibrational systems fluctuations of different vibration components have different intensities. Fluctuations of one of the components are often squeezed, whereas fluctuations of the other component, which is shifted in phase by π...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	J. S. Huber, G. Rastelli, M. J. Seitner, J. Kölbl, W. Belzig, M. I. Dykman, E. M. Weig
Formato:	article
Lenguaje:	EN
Publicado:	American Physical Society 2020
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/a5a725a1efb04c44ba8f7ce9b85a9eda
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:a5a725a1efb04c44ba8f7ce9b85a9eda
record_format	dspace
spelling	oai:doaj.org-article:a5a725a1efb04c44ba8f7ce9b85a9eda2021-12-02T12:22:34ZSpectral Evidence of Squeezing of a Weakly Damped Driven Nanomechanical Mode10.1103/PhysRevX.10.0210662160-3308https://doaj.org/article/a5a725a1efb04c44ba8f7ce9b85a9eda2020-06-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.10.021066http://doi.org/10.1103/PhysRevX.10.021066https://doaj.org/toc/2160-3308Because of the broken time-translation symmetry, in periodically driven vibrational systems fluctuations of different vibration components have different intensities. Fluctuations of one of the components are often squeezed, whereas fluctuations of the other component, which is shifted in phase by π/2, are increased. Squeezing is a multifaceted phenomenon; it attracts much attention from the perspective of high-precision measurements. Here we demonstrate a new and hitherto unappreciated side of squeezing: its direct manifestation in the spectra of driven vibrational systems. With a weakly damped nanomechanical resonator, we study the spectrum of thermal fluctuations of a resonantly driven nonlinear mode. In the attained sideband-resolved regime, we show that the asymmetry of the spectrum directly characterizes the squeezing. This opens a way to deduce squeezing of thermal fluctuations in strongly underdamped resonators, for which a direct determination by a standard homodyne measurement is impeded by frequency fluctuations. The experimental and theoretical results are in excellent agreement. We further extend the theory to also describe the spectral manifestation of squeezing of quantum fluctuations.J. S. HuberG. RastelliM. J. SeitnerJ. KölblW. BelzigM. I. DykmanE. M. WeigAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 10, Iss 2, p 021066 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 J. S. Huber G. Rastelli M. J. Seitner J. Kölbl W. Belzig M. I. Dykman E. M. Weig Spectral Evidence of Squeezing of a Weakly Damped Driven Nanomechanical Mode
description	Because of the broken time-translation symmetry, in periodically driven vibrational systems fluctuations of different vibration components have different intensities. Fluctuations of one of the components are often squeezed, whereas fluctuations of the other component, which is shifted in phase by π/2, are increased. Squeezing is a multifaceted phenomenon; it attracts much attention from the perspective of high-precision measurements. Here we demonstrate a new and hitherto unappreciated side of squeezing: its direct manifestation in the spectra of driven vibrational systems. With a weakly damped nanomechanical resonator, we study the spectrum of thermal fluctuations of a resonantly driven nonlinear mode. In the attained sideband-resolved regime, we show that the asymmetry of the spectrum directly characterizes the squeezing. This opens a way to deduce squeezing of thermal fluctuations in strongly underdamped resonators, for which a direct determination by a standard homodyne measurement is impeded by frequency fluctuations. The experimental and theoretical results are in excellent agreement. We further extend the theory to also describe the spectral manifestation of squeezing of quantum fluctuations.
format	article
author	J. S. Huber G. Rastelli M. J. Seitner J. Kölbl W. Belzig M. I. Dykman E. M. Weig
author_facet	J. S. Huber G. Rastelli M. J. Seitner J. Kölbl W. Belzig M. I. Dykman E. M. Weig
author_sort	J. S. Huber
title	Spectral Evidence of Squeezing of a Weakly Damped Driven Nanomechanical Mode
title_short	Spectral Evidence of Squeezing of a Weakly Damped Driven Nanomechanical Mode
title_full	Spectral Evidence of Squeezing of a Weakly Damped Driven Nanomechanical Mode
title_fullStr	Spectral Evidence of Squeezing of a Weakly Damped Driven Nanomechanical Mode
title_full_unstemmed	Spectral Evidence of Squeezing of a Weakly Damped Driven Nanomechanical Mode
title_sort	spectral evidence of squeezing of a weakly damped driven nanomechanical mode
publisher	American Physical Society
publishDate	2020
url	https://doaj.org/article/a5a725a1efb04c44ba8f7ce9b85a9eda
work_keys_str_mv	AT jshuber spectralevidenceofsqueezingofaweaklydampeddrivennanomechanicalmode AT grastelli spectralevidenceofsqueezingofaweaklydampeddrivennanomechanicalmode AT mjseitner spectralevidenceofsqueezingofaweaklydampeddrivennanomechanicalmode AT jkolbl spectralevidenceofsqueezingofaweaklydampeddrivennanomechanicalmode AT wbelzig spectralevidenceofsqueezingofaweaklydampeddrivennanomechanicalmode AT midykman spectralevidenceofsqueezingofaweaklydampeddrivennanomechanicalmode AT emweig spectralevidenceofsqueezingofaweaklydampeddrivennanomechanicalmode
_version_	1718394470889684992

Spectral Evidence of Squeezing of a Weakly Damped Driven Nanomechanical Mode

Ejemplares similares