Počet záznamů: 1

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

SYSNO ASEP	0535312
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Using the transient trajectories of an optically levitated nanoparticle to characterize a stochastic Duffing oscillator
Tvůrce(i)	Flajšmanová, Jana (UPT-D) Šiler, Martin (UPT-D)_{RID, ORCID, SAI} Jedlička, Petr (UPT-D)_{RID, SAI} Hrubý, František (UPT-D) Brzobohatý, Oto (UPT-D)_{RID, ORCID, SAI} Filip, R. (CZ) Zemánek, Pavel (UPT-D)_{RID, SAI, ORCID}
Celkový počet autorů	7
Číslo článku	14436
Zdroj.dok.	Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322 Roč. 10, č. 1 (2020)
Poč.str.	14 s.
Forma vydání	Tištěná - P
Jazyk dok.	eng - angličtina
Země vyd.	GB - Velká Británie
Klíč. slova	optically levitating nanoparticles ; transient trajectories ; Duffing oscillator
Vědní obor RIV	BH - Optika, masery a lasery
Obor OECD	Optics (including laser optics and quantum optics)
CEP	GA19-17765S GA ČR - Grantová agentura ČR
Způsob publikování	Open access
Institucionální podpora	UPT-D - RVO:68081731
UT WOS	000608581100021
EID SCOPUS	85090091694
DOI	10.1038/s41598-020-70908-z
Anotace	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.
Pracoviště	Ústav přístrojové techniky
Kontakt	Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178
Rok sběru	2021
Elektronická adresa	https://www.nature.com/articles/s41598-020-70908-z

Počet záznamů: 1