Using the transient trajectories of an optically levitated nanoparticle to characterize a stochastic Duffing oscillator

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F20%3A00535312" target="_blank" >RIV/68081731:_____/20:00535312 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/20:73603441

Result on the web

<a href="https://www.nature.com/articles/s41598-020-70908-z" target="_blank" >https://www.nature.com/articles/s41598-020-70908-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-020-70908-z" target="_blank" >10.1038/s41598-020-70908-z</a>

Result language

angličtina

Original language name

Using the transient trajectories of an optically levitated nanoparticle to characterize a stochastic Duffing oscillator

Original language description

We propose a novel methodology to estimate parameters characterizing a weakly nonlinear Duffing oscillator represented by an optically levitating nanoparticle. The method is based on averaging recorded trajectories with defined initial positions in the phase space of nanoparticle position and momentum and allows us to study the transient dynamics of the nonlinear system. This technique provides us with the parameters of a levitated nanoparticle such as eigenfrequency, damping, coefficient of nonlinearity and effective temperature directly from the recorded transient particle motion without any need for external driving or modification of an experimental system. Comparison of this innovative approach with a commonly used method based on fitting the power spectrum density profile shows that the proposed complementary method is applicable even at lower pressures where the nonlinearity starts to play a significant role and thus the power spectrum density method predicts steady state parameters. The technique is applicable also at low temperatures and extendable to recent quantum experiments. The proposed method is applied on experimental data and its validity for one-dimensional and three-dimensional motion of a levitated nanoparticle is verified by extensive numerical simulations.

Czech name

—

Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

—

OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

—

Volume of the periodical

10

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

14436

UT code for WoS article

000608581100021

EID of the result in the Scopus database

2-s2.0-85090091694